Finding the Fourth Proportional to 20,198,872.04, 27,874,621.67 and 11,497,604.99
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Solution
The fourth proportional to 20,198,872.04, 27,874,621.67 and 11,497,604.99 is: 15,866,796.35
Step by Step Solution
- Step 1: Write the proportion equation
20,198,872.04 : 27,874,621.67 = 11,497,604.99 : x - Step 2: Convert to fraction form
20,198,872.04/27,874,621.67 = 11,497,604.99/x - Step 3: Cross multiply
20,198,872.04x = 27,874,621.67 × 11,497,604.99 - Step 4: Simplify right side
20,198,872.04x = 320,491,389,010,493 - Step 5: Solve for x
x = 320,491,389,010,493/20,198,872.04 - Step 6: Final answer
x = 15,866,796.35
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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.