Finding the Fourth Proportional to 664,678,086.39, 996,125,910.66 and 517,303,592.19
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Solution
The fourth proportional to 664,678,086.39, 996,125,910.66 and 517,303,592.19 is: 775,261,773.19
Step by Step Solution
- Step 1: Write the proportion equation
664,678,086.39 : 996,125,910.66 = 517,303,592.19 : x - Step 2: Convert to fraction form
664,678,086.39/996,125,910.66 = 517,303,592.19/x - Step 3: Cross multiply
664,678,086.39x = 996,125,910.66 × 517,303,592.19 - Step 4: Simplify right side
664,678,086.39x = 515,299,511,857,953,024 - Step 5: Solve for x
x = 515,299,511,857,953,024/664,678,086.39 - Step 6: Final answer
x = 775,261,773.19
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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.