Finding the Fourth Proportional to 3,687,287,764.20, 5,530,931,646.30 and 3,261,125,226.30
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Solution
The fourth proportional to 3,687,287,764.20, 5,530,931,646.30 and 3,261,125,226.30 is: 4,891,687,839.45
Step by Step Solution
- Step 1: Write the proportion equation
3,687,287,764.20 : 5,530,931,646.30 = 3,261,125,226.30 : x - Step 2: Convert to fraction form
3,687,287,764.20/5,530,931,646.30 = 3,261,125,226.30/x - Step 3: Cross multiply
3,687,287,764.20x = 5,530,931,646.30 × 3,261,125,226.30 - Step 4: Simplify right side
3,687,287,764.20x = 18,037,060,716,689,920,000 - Step 5: Solve for x
x = 18,037,060,716,689,920,000/3,687,287,764.20 - Step 6: Final answer
x = 4,891,687,839.45
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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.