Finding the Fourth Proportional to 3,830,979.18, 5,746,468.68 and 3,639,414.36
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Solution
The fourth proportional to 3,830,979.18, 5,746,468.68 and 3,639,414.36 is: 5,459,121.45
Step by Step Solution
- Step 1: Write the proportion equation
3,830,979.18 : 5,746,468.68 = 3,639,414.36 : x - Step 2: Convert to fraction form
3,830,979.18/5,746,468.68 = 3,639,414.36/x - Step 3: Cross multiply
3,830,979.18x = 5,746,468.68 × 3,639,414.36 - Step 4: Simplify right side
3,830,979.18x = 20,913,780,633,282.24 - Step 5: Solve for x
x = 20,913,780,633,282.24/3,830,979.18 - Step 6: Final answer
x = 5,459,121.45
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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.