Finding the Fourth Proportional to 5,755,385.75, 7,942,451.36 and 3,177,060.37
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Solution
The fourth proportional to 5,755,385.75, 7,942,451.36 and 3,177,060.37 is: 4,384,353.81
Step by Step Solution
- Step 1: Write the proportion equation
5,755,385.75 : 7,942,451.36 = 3,177,060.37 : x - Step 2: Convert to fraction form
5,755,385.75/7,942,451.36 = 3,177,060.37/x - Step 3: Cross multiply
5,755,385.75x = 7,942,451.36 × 3,177,060.37 - Step 4: Simplify right side
5,755,385.75x = 25,233,647,420,767.18 - Step 5: Solve for x
x = 25,233,647,420,767.18/5,755,385.75 - Step 6: Final answer
x = 4,384,353.81
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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.