On a map with a scale of 1:5,000,000, the distance between Beijing and Tianjin is measured to be 2.7cm, so what is the actual distance in kilometers between Beijing and Tianjin?
在比例尺是1：5000000的地图上，量得北京到天津的距离是2.7cm，则北京到天津的实际距离是多少千米．
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">2.7 / (1/5_000_000) / 100_000</gadget>
<output>135</output>

<result>135</result>