Finding the Fourth Proportional to 3,267,378,529.80, 4,901,067,794.70 and 813,715,432.80
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Solution
The fourth proportional to 3,267,378,529.80, 4,901,067,794.70 and 813,715,432.80 is: 1,220,573,149.20
Step by Step Solution
- Step 1: Write the proportion equation
3,267,378,529.80 : 4,901,067,794.70 = 813,715,432.80 : x - Step 2: Convert to fraction form
3,267,378,529.80/4,901,067,794.70 = 813,715,432.80/x - Step 3: Cross multiply
3,267,378,529.80x = 4,901,067,794.70 × 813,715,432.80 - Step 4: Simplify right side
3,267,378,529.80x = 3,988,074,501,746,451,456 - Step 5: Solve for x
x = 3,988,074,501,746,451,456/3,267,378,529.80 - Step 6: Final answer
x = 1,220,573,149.20
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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.