On a map with a scale of (1/5000000), the measured distance between A and B is 8 cm. On another map of 1:4000000, how many centimeters are there between A and B?
在比例尺是(1/5000000)的地图上，测得甲乙两地的距离是8厘米，在另一幅1：4000000的地图上，甲乙两地相距多少厘米？
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">8 / (1/5_000_000)</gadget>
<output>40_000_000</output>

<gadget id="calculator">1 / 4_000_000</gadget>
<output>1/4_000_000 = around 0</output>

<gadget id="calculator">40_000_000 * (1/4_000_000)</gadget>
<output>10</output>

<result>10</result>