The actual distance of 5000 kilometers is represented by the distance of 10 cm on the picture. What is the scale of this picture?
用图上10厘米的距离表示实际距离5000千米，这幅图的比例尺是多少
<gadget id="calculator">10 / 500_000_000</gadget>
<output>1/50_000_000 = around 0</output>

<result>1/50_000_000 = around 0</result>