Finding the Fourth Proportional to 21,545,330.56, 29,734,013.12 and 12,381,626.24
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Solution
The fourth proportional to 21,545,330.56, 29,734,013.12 and 12,381,626.24 is: 17,087,481.49
Step by Step Solution
- Step 1: Write the proportion equation
21,545,330.56 : 29,734,013.12 = 12,381,626.24 : x - Step 2: Convert to fraction form
21,545,330.56/29,734,013.12 = 12,381,626.24/x - Step 3: Cross multiply
21,545,330.56x = 29,734,013.12 × 12,381,626.24 - Step 4: Simplify right side
21,545,330.56x = 368,155,437,067,096.31 - Step 5: Solve for x
x = 368,155,437,067,096.31/21,545,330.56 - Step 6: Final answer
x = 17,087,481.49
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1.5x scale
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.