Finding the Fourth Proportional to 8,138,725.20, 12,208,087.80 and 3,349,851.30
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Solution
The fourth proportional to 8,138,725.20, 12,208,087.80 and 3,349,851.30 is: 5,024,776.95
Step by Step Solution
- Step 1: Write the proportion equation
8,138,725.20 : 12,208,087.80 = 3,349,851.30 : x - Step 2: Convert to fraction form
8,138,725.20/12,208,087.80 = 3,349,851.30/x - Step 3: Cross multiply
8,138,725.20x = 12,208,087.80 × 3,349,851.30 - Step 4: Simplify right side
8,138,725.20x = 40,895,278,787,344.14 - Step 5: Solve for x
x = 40,895,278,787,344.14/8,138,725.20 - Step 6: Final answer
x = 5,024,776.95
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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.