Finding the Fourth Proportional to 18,217,687.20, 27,322,594.20 and 7,982,527.20
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Solution
The fourth proportional to 18,217,687.20, 27,322,594.20 and 7,982,527.20 is: 11,972,065.88
Step by Step Solution
- Step 1: Write the proportion equation
18,217,687.20 : 27,322,594.20 = 7,982,527.20 : x - Step 2: Convert to fraction form
18,217,687.20/27,322,594.20 = 7,982,527.20/x - Step 3: Cross multiply
18,217,687.20x = 27,322,594.20 × 7,982,527.20 - Step 4: Simplify right side
18,217,687.20x = 218,103,351,376,062.25 - Step 5: Solve for x
x = 218,103,351,376,062.25/18,217,687.20 - Step 6: Final answer
x = 11,972,065.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.