Finding the Fourth Proportional to 390,455,192.04, 585,680,251.08 and 99,319,827.48
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Solution
The fourth proportional to 390,455,192.04, 585,680,251.08 and 99,319,827.48 is: 148,979,095.89
Step by Step Solution
- Step 1: Write the proportion equation
390,455,192.04 : 585,680,251.08 = 99,319,827.48 : x - Step 2: Convert to fraction form
390,455,192.04/585,680,251.08 = 99,319,827.48/x - Step 3: Cross multiply
390,455,192.04x = 585,680,251.08 × 99,319,827.48 - Step 4: Simplify right side
390,455,192.04x = 58,169,661,495,708,688 - Step 5: Solve for x
x = 58,169,661,495,708,688/390,455,192.04 - Step 6: Final answer
x = 148,979,095.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.