Finding the Fourth Proportional to 5,481,655.20, 7,564,438.80 and 3,034,357.92
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Solution
The fourth proportional to 5,481,655.20, 7,564,438.80 and 3,034,357.92 is: 4,187,278.10
Step by Step Solution
- Step 1: Write the proportion equation
5,481,655.20 : 7,564,438.80 = 3,034,357.92 : x - Step 2: Convert to fraction form
5,481,655.20/7,564,438.80 = 3,034,357.92/x - Step 3: Cross multiply
5,481,655.20x = 7,564,438.80 × 3,034,357.92 - Step 4: Simplify right side
5,481,655.20x = 22,953,214,783,135.29 - Step 5: Solve for x
x = 22,953,214,783,135.29/5,481,655.20 - Step 6: Final answer
x = 4,187,278.10
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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.