The sailing competition of the 2008 Beijing Olympic Games will be held in Qingdao. If the distance from Qingdao to Beijing is measured on a 1:20000000 map as 3 centimeters, then the actual distance from Qingdao to Beijing is in kilometers.
2008年北京奥运会的帆船比赛将在青岛举行，在1：20000000的地图上量得青岛到北京的距离为3厘米，则从青岛到北京的实际距离为多少千米．
<gadget id="calculator">1 / 20_000_000</gadget>
<output>1/20_000_000 = around 0</output>

<gadget id="calculator">3 / (1/20_000_000) / 100_000</gadget>
<output>600</output>

<result>600</result>