Finding the Fourth Proportional to 284,316,800.56, 392,383,484.80 and 172,781,900.08
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Solution
The fourth proportional to 284,316,800.56, 392,383,484.80 and 172,781,900.08 is: 238,455,004.88
Step by Step Solution
- Step 1: Write the proportion equation
284,316,800.56 : 392,383,484.80 = 172,781,900.08 : x - Step 2: Convert to fraction form
284,316,800.56/392,383,484.80 = 172,781,900.08/x - Step 3: Cross multiply
284,316,800.56x = 392,383,484.80 × 172,781,900.08 - Step 4: Simplify right side
284,316,800.56x = 67,796,764,063,755,808 - Step 5: Solve for x
x = 67,796,764,063,755,808/284,316,800.56 - Step 6: Final answer
x = 238,455,004.88
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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.