Finding the Fourth Proportional to 6,931,363.20, 10,397,739.60 and 2,381,812.80
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Solution
The fourth proportional to 6,931,363.20, 10,397,739.60 and 2,381,812.80 is: 3,572,957.95
Step by Step Solution
- Step 1: Write the proportion equation
6,931,363.20 : 10,397,739.60 = 2,381,812.80 : x - Step 2: Convert to fraction form
6,931,363.20/10,397,739.60 = 2,381,812.80/x - Step 3: Cross multiply
6,931,363.20x = 10,397,739.60 × 2,381,812.80 - Step 4: Simplify right side
6,931,363.20x = 24,765,469,270,346.88 - Step 5: Solve for x
x = 24,765,469,270,346.88/6,931,363.20 - Step 6: Final answer
x = 3,572,957.95
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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.