Finding the Fourth Proportional to 5,755,686.80, 7,942,639.38 and 3,177,312.08
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Solution
The fourth proportional to 5,755,686.80, 7,942,639.38 and 3,177,312.08 is: 4,384,575.63
Step by Step Solution
- Step 1: Write the proportion equation
5,755,686.80 : 7,942,639.38 = 3,177,312.08 : x - Step 2: Convert to fraction form
5,755,686.80/7,942,639.38 = 3,177,312.08/x - Step 3: Cross multiply
5,755,686.80x = 7,942,639.38 × 3,177,312.08 - Step 4: Simplify right side
5,755,686.80x = 25,236,244,049,157.71 - Step 5: Solve for x
x = 25,236,244,049,157.71/5,755,686.80 - Step 6: Final answer
x = 4,384,575.63
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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.