Finding the Fourth Proportional to 791,448,126.07, 1,187,172,226.01 and 542,207,611.48
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Solution
The fourth proportional to 791,448,126.07, 1,187,172,226.01 and 542,207,611.48 is: 813,311,442.50
Step by Step Solution
- Step 1: Write the proportion equation
791,448,126.07 : 1,187,172,226.01 = 542,207,611.48 : x - Step 2: Convert to fraction form
791,448,126.07/1,187,172,226.01 = 542,207,611.48/x - Step 3: Cross multiply
791,448,126.07x = 1,187,172,226.01 × 542,207,611.48 - Step 4: Simplify right side
791,448,126.07x = 643,693,817,071,630,080 - Step 5: Solve for x
x = 643,693,817,071,630,080/791,448,126.07 - Step 6: Final answer
x = 813,311,442.50
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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.