Finding the Fourth Proportional to 10,120,471.75, 15,180,722.21 and 4,136,839.75
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Solution
The fourth proportional to 10,120,471.75, 15,180,722.21 and 4,136,839.75 is: 6,205,265.59
Step by Step Solution
- Step 1: Write the proportion equation
10,120,471.75 : 15,180,722.21 = 4,136,839.75 : x - Step 2: Convert to fraction form
10,120,471.75/15,180,722.21 = 4,136,839.75/x - Step 3: Cross multiply
10,120,471.75x = 15,180,722.21 × 4,136,839.75 - Step 4: Simplify right side
10,120,471.75x = 62,800,215,072,035.85 - Step 5: Solve for x
x = 62,800,215,072,035.85/10,120,471.75 - Step 6: Final answer
x = 6,205,265.59
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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.