Finding the Fourth Proportional to 3,862,815.12, 5,331,344.58 and 2,230,929.18
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Solution
The fourth proportional to 3,862,815.12, 5,331,344.58 and 2,230,929.18 is: 3,079,063.28
Step by Step Solution
- Step 1: Write the proportion equation
3,862,815.12 : 5,331,344.58 = 2,230,929.18 : x - Step 2: Convert to fraction form
3,862,815.12/5,331,344.58 = 2,230,929.18/x - Step 3: Cross multiply
3,862,815.12x = 5,331,344.58 × 2,230,929.18 - Step 4: Simplify right side
3,862,815.12x = 11,893,852,192,156.85 - Step 5: Solve for x
x = 11,893,852,192,156.85/3,862,815.12 - Step 6: Final answer
x = 3,079,063.28
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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.