Finding the Fourth Proportional to 284,316,784.56, 392,383,462.68 and 172,781,884.08
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Solution
The fourth proportional to 284,316,784.56, 392,383,462.68 and 172,781,884.08 is: 238,454,982.77
Step by Step Solution
- Step 1: Write the proportion equation
284,316,784.56 : 392,383,462.68 = 172,781,884.08 : x - Step 2: Convert to fraction form
284,316,784.56/392,383,462.68 = 172,781,884.08/x - Step 3: Cross multiply
284,316,784.56x = 392,383,462.68 × 172,781,884.08 - Step 4: Simplify right side
284,316,784.56x = 67,796,753,963,684,776 - Step 5: Solve for x
x = 67,796,753,963,684,776/284,316,784.56 - Step 6: Final answer
x = 238,454,982.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.