Finding the Fourth Proportional to 13,524,212.28, 18,663,864.30 and 7,412,656.44
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Solution
The fourth proportional to 13,524,212.28, 18,663,864.30 and 7,412,656.44 is: 10,229,713.28
Step by Step Solution
- Step 1: Write the proportion equation
13,524,212.28 : 18,663,864.30 = 7,412,656.44 : x - Step 2: Convert to fraction form
13,524,212.28/18,663,864.30 = 7,412,656.44/x - Step 3: Cross multiply
13,524,212.28x = 18,663,864.30 × 7,412,656.44 - Step 4: Simplify right side
13,524,212.28x = 138,348,813,898,681.11 - Step 5: Solve for x
x = 138,348,813,898,681.11/13,524,212.28 - Step 6: Final answer
x = 10,229,713.28
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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.