Finding the Fourth Proportional to 10,965,621.70, 16,448,432.55 and 2,987,445.70
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Solution
The fourth proportional to 10,965,621.70, 16,448,432.55 and 2,987,445.70 is: 4,481,168.55
Step by Step Solution
- Step 1: Write the proportion equation
10,965,621.70 : 16,448,432.55 = 2,987,445.70 : x - Step 2: Convert to fraction form
10,965,621.70/16,448,432.55 = 2,987,445.70/x - Step 3: Cross multiply
10,965,621.70x = 16,448,432.55 × 2,987,445.70 - Step 4: Simplify right side
10,965,621.70x = 49,138,799,093,237.54 - Step 5: Solve for x
x = 49,138,799,093,237.54/10,965,621.70 - Step 6: Final answer
x = 4,481,168.55
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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.