Question

A countrys population in 1995 was 175 million.In 1999 it was 180 million. Estimate the population in 2016 using the exponential growth formula. Round your answer to the nearest million.

p=Aekt

Answer 1

1,999−1,995=4 years
K=[log(p/A)/log(e)]/t
K=[log(180,000,000÷175,000,000)÷log(e)]/4=0.0070×100=0.70%

2016-1995==21 years
P=Ae^kt
P=175,000,000×e^(0.70%×21)
=202,711,943.53