Finding the Fourth Proportional to 508,700,207.20, 763,050,310.80 and 125,747,759.20
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Solution
The fourth proportional to 508,700,207.20, 763,050,310.80 and 125,747,759.20 is: 188,621,638.80
Step by Step Solution
- Step 1: Write the proportion equation
508,700,207.20 : 763,050,310.80 = 125,747,759.20 : x - Step 2: Convert to fraction form
508,700,207.20/763,050,310.80 = 125,747,759.20/x - Step 3: Cross multiply
508,700,207.20x = 763,050,310.80 × 125,747,759.20 - Step 4: Simplify right side
508,700,207.20x = 95,951,866,739,963,552 - Step 5: Solve for x
x = 95,951,866,739,963,552/508,700,207.20 - Step 6: Final answer
x = 188,621,638.80
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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.