Finding the Fourth Proportional to 5,147,105.92, 7,718,020.11 and 2,719,564.63
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Solution
The fourth proportional to 5,147,105.92, 7,718,020.11 and 2,719,564.63 is: 4,077,952.70
Step by Step Solution
- Step 1: Write the proportion equation
5,147,105.92 : 7,718,020.11 = 2,719,564.63 : x - Step 2: Convert to fraction form
5,147,105.92/7,718,020.11 = 2,719,564.63/x - Step 3: Cross multiply
5,147,105.92x = 7,718,020.11 × 2,719,564.63 - Step 4: Simplify right side
5,147,105.92x = 20,989,654,485,489.66 - Step 5: Solve for x
x = 20,989,654,485,489.66/5,147,105.92 - Step 6: Final answer
x = 4,077,952.70
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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.