Finding the Fourth Proportional to 551,430,921.10, 827,146,381.65 and 491,165,511.70
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Solution
The fourth proportional to 551,430,921.10, 827,146,381.65 and 491,165,511.70 is: 736,748,267.55
Step by Step Solution
- Step 1: Write the proportion equation
551,430,921.10 : 827,146,381.65 = 491,165,511.70 : x - Step 2: Convert to fraction form
551,430,921.10/827,146,381.65 = 491,165,511.70/x - Step 3: Cross multiply
551,430,921.10x = 827,146,381.65 × 491,165,511.70 - Step 4: Simplify right side
551,430,921.10x = 406,265,775,793,925,696 - Step 5: Solve for x
x = 406,265,775,793,925,696/551,430,921.10 - Step 6: Final answer
x = 736,748,267.55
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Double scale
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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.