Finding the Fourth Proportional to 4,920,983.70, 7,381,475.55 and 3,661,271.70
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Solution
The fourth proportional to 4,920,983.70, 7,381,475.55 and 3,661,271.70 is: 5,491,907.55
Step by Step Solution
- Step 1: Write the proportion equation
4,920,983.70 : 7,381,475.55 = 3,661,271.70 : x - Step 2: Convert to fraction form
4,920,983.70/7,381,475.55 = 3,661,271.70/x - Step 3: Cross multiply
4,920,983.70x = 7,381,475.55 × 3,661,271.70 - Step 4: Simplify right side
4,920,983.70x = 27,025,587,535,456.94 - Step 5: Solve for x
x = 27,025,587,535,456.94/4,920,983.70 - Step 6: Final answer
x = 5,491,907.55
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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.