Finding the Fourth Proportional to 8,138,744.13, 11,231,422.57 and 4,467,723.18
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Solution
The fourth proportional to 8,138,744.13, 11,231,422.57 and 4,467,723.18 is: 6,165,433.65
Step by Step Solution
- Step 1: Write the proportion equation
8,138,744.13 : 11,231,422.57 = 4,467,723.18 : x - Step 2: Convert to fraction form
8,138,744.13/11,231,422.57 = 4,467,723.18/x - Step 3: Cross multiply
8,138,744.13x = 11,231,422.57 × 4,467,723.18 - Step 4: Simplify right side
8,138,744.13x = 50,178,886,923,830.98 - Step 5: Solve for x
x = 50,178,886,923,830.98/8,138,744.13 - Step 6: Final answer
x = 6,165,433.65
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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.