Finding the Fourth Proportional to 13,356,103.31, 18,436,170.11 and 8,126,723.87
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Solution
The fourth proportional to 13,356,103.31, 18,436,170.11 and 8,126,723.87 is: 11,217,767.66
Step by Step Solution
- Step 1: Write the proportion equation
13,356,103.31 : 18,436,170.11 = 8,126,723.87 : x - Step 2: Convert to fraction form
13,356,103.31/18,436,170.11 = 8,126,723.87/x - Step 3: Cross multiply
13,356,103.31x = 18,436,170.11 × 8,126,723.87 - Step 4: Simplify right side
13,356,103.31x = 149,825,663,812,907.31 - Step 5: Solve for x
x = 149,825,663,812,907.31/13,356,103.31 - Step 6: Final answer
x = 11,217,767.66
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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.