Finding the Fourth Proportional to 527,689,650.12, 728,212,575.08 and 292,740,318.02
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Solution
The fourth proportional to 527,689,650.12, 728,212,575.08 and 292,740,318.02 is: 403,982,114.80
Step by Step Solution
- Step 1: Write the proportion equation
527,689,650.12 : 728,212,575.08 = 292,740,318.02 : x - Step 2: Convert to fraction form
527,689,650.12/728,212,575.08 = 292,740,318.02/x - Step 3: Cross multiply
527,689,650.12x = 728,212,575.08 × 292,740,318.02 - Step 4: Simplify right side
527,689,650.12x = 213,177,180,815,082,336 - Step 5: Solve for x
x = 213,177,180,815,082,336/527,689,650.12 - Step 6: Final answer
x = 403,982,114.80
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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.