Finding the Fourth Proportional to 3,960,417.28, 5,465,382.08 and 2,149,582.08
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Solution
The fourth proportional to 3,960,417.28, 5,465,382.08 and 2,149,582.08 is: 2,966,426.65
Step by Step Solution
- Step 1: Write the proportion equation
3,960,417.28 : 5,465,382.08 = 2,149,582.08 : x - Step 2: Convert to fraction form
3,960,417.28/5,465,382.08 = 2,149,582.08/x - Step 3: Cross multiply
3,960,417.28x = 5,465,382.08 × 2,149,582.08 - Step 4: Simplify right side
3,960,417.28x = 11,748,287,379,521.13 - Step 5: Solve for x
x = 11,748,287,379,521.13/3,960,417.28 - Step 6: Final answer
x = 2,966,426.65
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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.