History I / Urban Geography and City Systems
Practice question · Numerical answer

A country’s largest city has 8 million people. Under the rank-size rule, roughly what population would the 4th largest city have?

Hints
  1. The nnth city has about 1/n1/n of the largest.
  2. 8/48 / 4.
Show the answer

2 million (answers within ±0.3 count)

Why

Two million. The rule is rough and empirical rather than a law, but it holds across strikingly different countries and centuries, which is exactly why the deviations are worth reading.

Read the lesson: Urban Geography and City Systems →

Practise Urban Geography and City Systems

The app has 5 more questions on this lesson, and keeps your place in the course. History I is free to start.

More questions on Urban Geography and City Systems