A road has been repaired for 200 meters, and the ratio of the unrepaired part to the total length of the road is 4:9. How many meters of this road will be repaired?
一条公路，已修200米，未修的与公路总长的比是4：9，这条公路还有修多少米？
<gadget id="calculator">9 - 4</gadget>
<output>5</output>

<gadget id="calculator">200 / 5</gadget>
<output>40</output>

<gadget id="calculator">40 * 4</gadget>
<output>160</output>

<result>160</result>