Finding the Fourth Proportional to 5,218,257.74, 7,829,251.12 and 3,173,079.30
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Solution
The fourth proportional to 5,218,257.74, 7,829,251.12 and 3,173,079.30 is: 4,760,752.71
Step by Step Solution
- Step 1: Write the proportion equation
5,218,257.74 : 7,829,251.12 = 3,173,079.30 : x - Step 2: Convert to fraction form
5,218,257.74/7,829,251.12 = 3,173,079.30/x - Step 3: Cross multiply
5,218,257.74x = 7,829,251.12 × 3,173,079.30 - Step 4: Simplify right side
5,218,257.74x = 24,842,834,663,373.82 - Step 5: Solve for x
x = 24,842,834,663,373.82/5,218,257.74 - Step 6: Final answer
x = 4,760,752.71
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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.