Finding the Fourth Proportional to 10,363,471.20, 15,545,206.80 and 8,198,632.80
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Solution
The fourth proportional to 10,363,471.20, 15,545,206.80 and 8,198,632.80 is: 12,297,949.20
Step by Step Solution
- Step 1: Write the proportion equation
10,363,471.20 : 15,545,206.80 = 8,198,632.80 : x - Step 2: Convert to fraction form
10,363,471.20/15,545,206.80 = 8,198,632.80/x - Step 3: Cross multiply
10,363,471.20x = 15,545,206.80 × 8,198,632.80 - Step 4: Simplify right side
10,363,471.20x = 127,449,442,353,263.05 - Step 5: Solve for x
x = 127,449,442,353,263.05/10,363,471.20 - Step 6: Final answer
x = 12,297,949.20
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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.