On a map with a scale of 1:18000000, the length of a route from Chengdu to Guangzhou is measured to be about 12.4 centimeters, so how many kilometers is the actual distance of the route from Chengdu to Guangzhou?
在一幅比例尺为1：18000000的地图上，量得成都至广州的一条路线的长约为12.4厘米，则成都至广州的该路线的实际距离约为多少千米．
<gadget id="calculator">1 / 18_000_000</gadget>
<output>1/18_000_000 = around 0</output>

<gadget id="calculator">12.4 / (1/18_000_000) / 100_000</gadget>
<output>2_232</output>

<result>2_232</result>