Finding the Fourth Proportional to 12,451,446.95, 18,638,863.35 and 8,124,179.49
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Solution
The fourth proportional to 12,451,446.95, 18,638,863.35 and 8,124,179.49 is: 12,161,275.07
Step by Step Solution
- Step 1: Write the proportion equation
12,451,446.95 : 18,638,863.35 = 8,124,179.49 : x - Step 2: Convert to fraction form
12,451,446.95/18,638,863.35 = 8,124,179.49/x - Step 3: Cross multiply
12,451,446.95x = 18,638,863.35 × 8,124,179.49 - Step 4: Simplify right side
12,451,446.95x = 151,425,471,304,361.78 - Step 5: Solve for x
x = 151,425,471,304,361.78/12,451,446.95 - Step 6: Final answer
x = 12,161,275.07
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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.