History I / Urban Geography and City Systems
Practice question · Estimate

In a rank-size system whose largest city has 12 million people, roughly what population would the 3rd largest have?

Estimate on a scale from 1 to 9.

Hints
  1. Divide the largest city's population by the rank.
  2. The third rank means dividing by three.
Show the answer

4 million (answers within ±0.75 count)

Why

Four million, 12/312/3. Simple enough to check on any country’s census, which is precisely how you find the ones that do not fit.

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