Finding the Fourth Proportional to 11,392,843.32, 15,703,309.62 and 8,491,175.46
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Solution
The fourth proportional to 11,392,843.32, 15,703,309.62 and 8,491,175.46 is: 11,703,799.79
Step by Step Solution
- Step 1: Write the proportion equation
11,392,843.32 : 15,703,309.62 = 8,491,175.46 : x - Step 2: Convert to fraction form
11,392,843.32/15,703,309.62 = 8,491,175.46/x - Step 3: Cross multiply
11,392,843.32x = 15,703,309.62 × 8,491,175.46 - Step 4: Simplify right side
11,392,843.32x = 133,339,557,286,125.94 - Step 5: Solve for x
x = 133,339,557,286,125.94/11,392,843.32 - Step 6: Final answer
x = 11,703,799.79
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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.