5 Largest Economies in the World by 2040

4. Germany

Real GDP Forecast (2040): $5.3 Trillion

Population Forecast (2040): 81,201,000

The population of Germany is expected to reach 81,201,000 by 2040 and the real GDP is expected to grow to $5.3 trillion. Germany ranks fourth among the largest economies in the world by 2040.