Finding the Fourth Proportional to 8,192,513.20, 12,288,769.80 and 7,247,729.20
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Solution
The fourth proportional to 8,192,513.20, 12,288,769.80 and 7,247,729.20 is: 10,871,593.80
Step by Step Solution
- Step 1: Write the proportion equation
8,192,513.20 : 12,288,769.80 = 7,247,729.20 : x - Step 2: Convert to fraction form
8,192,513.20/12,288,769.80 = 7,247,729.20/x - Step 3: Cross multiply
8,192,513.20x = 12,288,769.80 × 7,247,729.20 - Step 4: Simplify right side
8,192,513.20x = 89,065,675,711,538.17 - Step 5: Solve for x
x = 89,065,675,711,538.17/8,192,513.20 - Step 6: Final answer
x = 10,871,593.80
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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.