Finding the Fourth Proportional to 11,508,771.70, 15,880,974.21 and 6,351,801.10
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Solution
The fourth proportional to 11,508,771.70, 15,880,974.21 and 6,351,801.10 is: 8,764,861.45
Step by Step Solution
- Step 1: Write the proportion equation
11,508,771.70 : 15,880,974.21 = 6,351,801.10 : x - Step 2: Convert to fraction form
11,508,771.70/15,880,974.21 = 6,351,801.10/x - Step 3: Cross multiply
11,508,771.70x = 15,880,974.21 × 6,351,801.10 - Step 4: Simplify right side
11,508,771.70x = 100,872,789,456,149.62 - Step 5: Solve for x
x = 100,872,789,456,149.62/11,508,771.70 - Step 6: Final answer
x = 8,764,861.45
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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.