Finding the Fourth Proportional to 20,724,821.80, 31,087,232.70 and 6,541,397.80
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Solution
The fourth proportional to 20,724,821.80, 31,087,232.70 and 6,541,397.80 is: 9,812,096.70
Step by Step Solution
- Step 1: Write the proportion equation
20,724,821.80 : 31,087,232.70 = 6,541,397.80 : x - Step 2: Convert to fraction form
20,724,821.80/31,087,232.70 = 6,541,397.80/x - Step 3: Cross multiply
20,724,821.80x = 31,087,232.70 × 6,541,397.80 - Step 4: Simplify right side
20,724,821.80x = 203,353,955,591,868.06 - Step 5: Solve for x
x = 203,353,955,591,868.06/20,724,821.80 - Step 6: Final answer
x = 9,812,096.70
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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.