Britans population went from 16.1 million in the 1800 to ______in the 1900.

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To find the answer to this question, you can follow these steps:

1. Determine the growth rate: To calculate the growth rate over a specific time period, you need to divide the final value by the initial value. In this case, the initial value is 16.1 million, and the final value is unknown.

2. Determine the time period: The time period given is from the 1800s to the 1900s, which spans 100 years.

3. Calculate the growth rate per year: Since the growth rate is given per year, divide the growth rate by the time period. In this case, the growth rate per year is the unknown final value divided by 100.

4. Solve for the unknown final value: Multiply the growth rate per year by the number of years (100) and add it to the initial value (16.1 million) to find the final value.

However, without knowing the exact number provided in the original source (the broken link), I cannot provide the precise answer. Please refer to a reliable source or update the information in your question for a specific answer.