Finding the Fourth Proportional to 8,161,981.20, 12,243,432.60 and 2,482,390.80
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Solution
The fourth proportional to 8,161,981.20, 12,243,432.60 and 2,482,390.80 is: 3,723,726.35
Step by Step Solution
- Step 1: Write the proportion equation
8,161,981.20 : 12,243,432.60 = 2,482,390.80 : x - Step 2: Convert to fraction form
8,161,981.20/12,243,432.60 = 2,482,390.80/x - Step 3: Cross multiply
8,161,981.20x = 12,243,432.60 × 2,482,390.80 - Step 4: Simplify right side
8,161,981.20x = 30,392,984,446,660.08 - Step 5: Solve for x
x = 30,392,984,446,660.08/8,161,981.20 - Step 6: Final answer
x = 3,723,726.35
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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.