Finding the Fourth Proportional to 5,311,937.68, 7,964,491.84 and 3,488,147.80
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Solution
The fourth proportional to 5,311,937.68, 7,964,491.84 and 3,488,147.80 is: 5,229,979.41
Step by Step Solution
- Step 1: Write the proportion equation
5,311,937.68 : 7,964,491.84 = 3,488,147.80 : x - Step 2: Convert to fraction form
5,311,937.68/7,964,491.84 = 3,488,147.80/x - Step 3: Cross multiply
5,311,937.68x = 7,964,491.84 × 3,488,147.80 - Step 4: Simplify right side
5,311,937.68x = 27,781,324,689,813.95 - Step 5: Solve for x
x = 27,781,324,689,813.95/5,311,937.68 - Step 6: Final answer
x = 5,229,979.41
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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.