Finding the Fourth Proportional to 5,167,902.87, 7,751,263.82 and 1,381,680.99
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Solution
The fourth proportional to 5,167,902.87, 7,751,263.82 and 1,381,680.99 is: 2,072,363.61
Step by Step Solution
- Step 1: Write the proportion equation
5,167,902.87 : 7,751,263.82 = 1,381,680.99 : x - Step 2: Convert to fraction form
5,167,902.87/7,751,263.82 = 1,381,680.99/x - Step 3: Cross multiply
5,167,902.87x = 7,751,263.82 × 1,381,680.99 - Step 4: Simplify right side
5,167,902.87x = 10,709,773,861,660.38 - Step 5: Solve for x
x = 10,709,773,861,660.38/5,167,902.87 - Step 6: Final answer
x = 2,072,363.61
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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.