Finding the Fourth Proportional to 5,639,748.97, 7,782,863.45 and 3,061,431.49
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Solution
The fourth proportional to 5,639,748.97, 7,782,863.45 and 3,061,431.49 is: 4,224,780.81
Step by Step Solution
- Step 1: Write the proportion equation
5,639,748.97 : 7,782,863.45 = 3,061,431.49 : x - Step 2: Convert to fraction form
5,639,748.97/7,782,863.45 = 3,061,431.49/x - Step 3: Cross multiply
5,639,748.97x = 7,782,863.45 × 3,061,431.49 - Step 4: Simplify right side
5,639,748.97x = 23,826,703,193,978.57 - Step 5: Solve for x
x = 23,826,703,193,978.57/5,639,748.97 - Step 6: Final answer
x = 4,224,780.81
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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.