Finding the Fourth Proportional to 8,327,107.20, 12,490,660.80 and 4,967,875.20
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Solution
The fourth proportional to 8,327,107.20, 12,490,660.80 and 4,967,875.20 is: 7,451,812.80
Step by Step Solution
- Step 1: Write the proportion equation
8,327,107.20 : 12,490,660.80 = 4,967,875.20 : x - Step 2: Convert to fraction form
8,327,107.20/12,490,660.80 = 4,967,875.20/x - Step 3: Cross multiply
8,327,107.20x = 12,490,660.80 × 4,967,875.20 - Step 4: Simplify right side
8,327,107.20x = 62,052,044,019,932.16 - Step 5: Solve for x
x = 62,052,044,019,932.16/8,327,107.20 - Step 6: Final answer
x = 7,451,812.80
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1.5x scale
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.