Finding the Fourth Proportional to 5,541,634.80, 8,312,452.20 and 5,163,721.20
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Solution
The fourth proportional to 5,541,634.80, 8,312,452.20 and 5,163,721.20 is: 7,745,581.80
Step by Step Solution
- Step 1: Write the proportion equation
5,541,634.80 : 8,312,452.20 = 5,163,721.20 : x - Step 2: Convert to fraction form
5,541,634.80/8,312,452.20 = 5,163,721.20/x - Step 3: Cross multiply
5,541,634.80x = 8,312,452.20 × 5,163,721.20 - Step 4: Simplify right side
5,541,634.80x = 42,923,185,649,126.64 - Step 5: Solve for x
x = 42,923,185,649,126.64/5,541,634.80 - Step 6: Final answer
x = 7,745,581.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.