Finding the Fourth Proportional to 13,524,212.78, 18,663,864.99 and 7,412,656.94
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Solution
The fourth proportional to 13,524,212.78, 18,663,864.99 and 7,412,656.94 is: 10,229,713.97
Step by Step Solution
- Step 1: Write the proportion equation
13,524,212.78 : 18,663,864.99 = 7,412,656.94 : x - Step 2: Convert to fraction form
13,524,212.78/18,663,864.99 = 7,412,656.94/x - Step 3: Cross multiply
13,524,212.78x = 18,663,864.99 × 7,412,656.94 - Step 4: Simplify right side
13,524,212.78x = 138,348,828,345,346.53 - Step 5: Solve for x
x = 138,348,828,345,346.53/13,524,212.78 - Step 6: Final answer
x = 10,229,713.97
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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.