Finding the Fourth Proportional to 567,691,423.20, 783,412,689.60 and 316,793,182.68
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Solution
The fourth proportional to 567,691,423.20, 783,412,689.60 and 316,793,182.68 is: 437,173,769.32
Step by Step Solution
- Step 1: Write the proportion equation
567,691,423.20 : 783,412,689.60 = 316,793,182.68 : x - Step 2: Convert to fraction form
567,691,423.20/783,412,689.60 = 316,793,182.68/x - Step 3: Cross multiply
567,691,423.20x = 783,412,689.60 × 316,793,182.68 - Step 4: Simplify right side
567,691,423.20x = 248,179,799,290,282,944 - Step 5: Solve for x
x = 248,179,799,290,282,944/567,691,423.20 - Step 6: Final answer
x = 437,173,769.32
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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.