Finding the Fourth Proportional to 3,862,819.62, 5,331,350.79 and 2,230,933.68
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Solution
The fourth proportional to 3,862,819.62, 5,331,350.79 and 2,230,933.68 is: 3,079,069.49
Step by Step Solution
- Step 1: Write the proportion equation
3,862,819.62 : 5,331,350.79 = 2,230,933.68 : x - Step 2: Convert to fraction form
3,862,819.62/5,331,350.79 = 2,230,933.68/x - Step 3: Cross multiply
3,862,819.62x = 5,331,350.79 × 2,230,933.68 - Step 4: Simplify right side
3,862,819.62x = 11,893,890,037,305.61 - Step 5: Solve for x
x = 11,893,890,037,305.61/3,862,819.62 - Step 6: Final answer
x = 3,079,069.49
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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.