Finding the Fourth Proportional to 791,448,134.83, 1,187,172,239.14 and 542,207,620.24
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Solution
The fourth proportional to 791,448,134.83, 1,187,172,239.14 and 542,207,620.24 is: 813,311,455.64
Step by Step Solution
- Step 1: Write the proportion equation
791,448,134.83 : 1,187,172,239.14 = 542,207,620.24 : x - Step 2: Convert to fraction form
791,448,134.83/1,187,172,239.14 = 542,207,620.24/x - Step 3: Cross multiply
791,448,134.83x = 1,187,172,239.14 × 542,207,620.24 - Step 4: Simplify right side
791,448,134.83x = 643,693,834,599,091,712 - Step 5: Solve for x
x = 643,693,834,599,091,712/791,448,134.83 - Step 6: Final answer
x = 813,311,455.64
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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.