Finding the Fourth Proportional to 667,246,212.48, 920,799,753.28 and 369,887,701.12
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Solution
The fourth proportional to 667,246,212.48, 920,799,753.28 and 369,887,701.12 is: 510,445,016.49
Step by Step Solution
- Step 1: Write the proportion equation
667,246,212.48 : 920,799,753.28 = 369,887,701.12 : x - Step 2: Convert to fraction form
667,246,212.48/920,799,753.28 = 369,887,701.12/x - Step 3: Cross multiply
667,246,212.48x = 920,799,753.28 × 369,887,701.12 - Step 4: Simplify right side
667,246,212.48x = 340,592,503,932,602,368 - Step 5: Solve for x
x = 340,592,503,932,602,368/667,246,212.48 - Step 6: Final answer
x = 510,445,016.49
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1.5x scale
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.