Lan Lan's house is doing renovations. Use tiles of the same size to pave a room of 18 square meters and a living room of 27 square meters. It is known that exactly 200 tiles are used to pave the room, how many tiles are used to pave the living room? (in proportion)
兰兰家里搞装修．用同样大小的瓷砖铺一间18平方米的房间和一间27平方米的客厅．已知铺房间正好用了200块瓷砖，铺客厅要用多少块瓷砖？(用比例)
<gadget id="calculator">18 / 200</gadget>
<output>9/100 = around 0.09</output>

<gadget id="calculator">27 / (9/100)</gadget>
<output>300</output>

<result>300</result>