Finding the Fourth Proportional to 5,398,138.24, 7,449,431.12 and 2,950,758.97
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Solution
The fourth proportional to 5,398,138.24, 7,449,431.12 and 2,950,758.97 is: 4,072,047.57
Step by Step Solution
- Step 1: Write the proportion equation
5,398,138.24 : 7,449,431.12 = 2,950,758.97 : x - Step 2: Convert to fraction form
5,398,138.24/7,449,431.12 = 2,950,758.97/x - Step 3: Cross multiply
5,398,138.24x = 7,449,431.12 × 2,950,758.97 - Step 4: Simplify right side
5,398,138.24x = 21,981,475,698,737.15 - Step 5: Solve for x
x = 21,981,475,698,737.15/5,398,138.24 - Step 6: Final answer
x = 4,072,047.57
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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.