On a map with a scale of 1:9000000, the measured distance from Wuhan to Beijing is 128 centimeters. How many kilometers is the actual distance from Beijing to Wuhan?
在比例尺是1：9000000的地图上，量得武汉到北京的距离是128厘米，北京到武汉的实际距离约是多少千米？
<gadget id="calculator">1 / 9_000_000</gadget>
<output>1/9_000_000 = around 0</output>

<gadget id="calculator">128 / (1/9_000_000) / 100_000</gadget>
<output>11_520</output>

<result>11_520</result>