In 2006 China had a population of 1.3 billion and a total fertility rate of 1.73 children per woman, to sustain the population the total fertility rate needs to be 2.1. How do you calculate what the population will be in the year 2100?
2006-09-19 16:55:25 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
There is missing information. How much of the population is female for one?How many of them are of child bearing years? Set it up to multiply the number of women of child bearing years times 1.73. Do this for each year and you will find out.
(1.73w)94 = x
2006-09-19 17:05:42 · answer #1 · answered by mother_of_bonehead 3 · 0⤊ 0⤋
it it too early to calculate the population more 100 years from this year because the current calculation method does not include the factor like Nuclear War, Bird Flu and etc..
However I agree India's population will surpass China after 20 years.
2006-09-20 03:28:42 · answer #2 · answered by China Expert 1 · 0⤊ 0⤋
I don't know if this is right but maybe this will help
94(2.1x)=1300000000
x=6585612.969 <-- not sure what this is
6585612.969(1.73)=11393110.44
11393110.44(94)=1070852381 tot. population in 2100
2006-09-20 00:06:30 · answer #3 · answered by Devin 2 · 0⤊ 0⤋
I think you need a Chinese person to help you find what you need in China, and I know a website can provide the service , the service is called "Person to Person" http://www.knowhowing.com/persontoperson.htm ï¼ through the service you just like engage a "agent" in China to help you to find what you need in China.
2006-09-22 00:27:54 · answer #4 · answered by knowhowing 3 · 0⤊ 0⤋
It will be present day Japan or United States.
2006-09-20 00:02:54 · answer #5 · answered by savio 4 · 0⤊ 0⤋