Finding the Fourth Proportional to 13,524,215.28, 18,663,868.44 and 7,412,659.44
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Solution
The fourth proportional to 13,524,215.28, 18,663,868.44 and 7,412,659.44 is: 10,229,717.42
Step by Step Solution
- Step 1: Write the proportion equation
13,524,215.28 : 18,663,868.44 = 7,412,659.44 : x - Step 2: Convert to fraction form
13,524,215.28/18,663,868.44 = 7,412,659.44/x - Step 3: Cross multiply
13,524,215.28x = 18,663,868.44 × 7,412,659.44 - Step 4: Simplify right side
13,524,215.28x = 138,348,900,578,684.09 - Step 5: Solve for x
x = 138,348,900,578,684.09/13,524,215.28 - Step 6: Final answer
x = 10,229,717.42
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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.