Finding the Fourth Proportional to 3,129,160,622.13, 4,318,481,839.55 and 1,791,470,276.91
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Solution
The fourth proportional to 3,129,160,622.13, 4,318,481,839.55 and 1,791,470,276.91 is: 2,472,366,487.74
Step by Step Solution
- Step 1: Write the proportion equation
3,129,160,622.13 : 4,318,481,839.55 = 1,791,470,276.91 : x - Step 2: Convert to fraction form
3,129,160,622.13/4,318,481,839.55 = 1,791,470,276.91/x - Step 3: Cross multiply
3,129,160,622.13x = 4,318,481,839.55 × 1,791,470,276.91 - Step 4: Simplify right side
3,129,160,622.13x = 7,736,431,856,920,487,936 - Step 5: Solve for x
x = 7,736,431,856,920,487,936/3,129,160,622.13 - Step 6: Final answer
x = 2,472,366,487.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.