Finding the Fourth Proportional to 5,755,639.87, 7,942,574.82 and 3,177,265.29
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Solution
The fourth proportional to 5,755,639.87, 7,942,574.82 and 3,177,265.29 is: 4,384,511.17
Step by Step Solution
- Step 1: Write the proportion equation
5,755,639.87 : 7,942,574.82 = 3,177,265.29 : x - Step 2: Convert to fraction form
5,755,639.87/7,942,574.82 = 3,177,265.29/x - Step 3: Cross multiply
5,755,639.87x = 7,942,574.82 × 3,177,265.29 - Step 4: Simplify right side
5,755,639.87x = 25,235,667,288,814 - Step 5: Solve for x
x = 25,235,667,288,814/5,755,639.87 - Step 6: Final answer
x = 4,384,511.17
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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.