Finding the Fourth Proportional to 722,236,564.17, 996,991,562.10 and 487,605,034.62
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Solution
The fourth proportional to 722,236,564.17, 996,991,562.10 and 487,605,034.62 is: 673,100,932.95
Step by Step Solution
- Step 1: Write the proportion equation
722,236,564.17 : 996,991,562.10 = 487,605,034.62 : x - Step 2: Convert to fraction form
722,236,564.17/996,991,562.10 = 487,605,034.62/x - Step 3: Cross multiply
722,236,564.17x = 996,991,562.10 × 487,605,034.62 - Step 4: Simplify right side
722,236,564.17x = 486,138,105,153,618,368 - Step 5: Solve for x
x = 486,138,105,153,618,368/722,236,564.17 - Step 6: Final answer
x = 673,100,932.95
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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.