Finding the Fourth Proportional to 817,696,516.10, 1,226,544,774.15 and 491,179,165.70
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Solution
The fourth proportional to 817,696,516.10, 1,226,544,774.15 and 491,179,165.70 is: 736,768,748.55
Step by Step Solution
- Step 1: Write the proportion equation
817,696,516.10 : 1,226,544,774.15 = 491,179,165.70 : x - Step 2: Convert to fraction form
817,696,516.10/1,226,544,774.15 = 491,179,165.70/x - Step 3: Cross multiply
817,696,516.10x = 1,226,544,774.15 × 491,179,165.70 - Step 4: Simplify right side
817,696,516.10x = 602,453,238,860,691,968 - Step 5: Solve for x
x = 602,453,238,860,691,968/817,696,516.10 - Step 6: Final answer
x = 736,768,748.55
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1.5x scale
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.