Finding the Fourth Proportional to 5,386,149.17, 7,424,202.90 and 3,643,182.91
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Solution
The fourth proportional to 5,386,149.17, 7,424,202.90 and 3,643,182.91 is: 5,021,719.28
Step by Step Solution
- Step 1: Write the proportion equation
5,386,149.17 : 7,424,202.90 = 3,643,182.91 : x - Step 2: Convert to fraction form
5,386,149.17/7,424,202.90 = 3,643,182.91/x - Step 3: Cross multiply
5,386,149.17x = 7,424,202.90 × 3,643,182.91 - Step 4: Simplify right side
5,386,149.17x = 27,047,729,120,753.87 - Step 5: Solve for x
x = 27,047,729,120,753.87/5,386,149.17 - Step 6: Final answer
x = 5,021,719.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.