Finding the Fourth Proportional to 10,218,286.62, 15,322,979.31 and 2,930,135.82
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Solution
The fourth proportional to 10,218,286.62, 15,322,979.31 and 2,930,135.82 is: 4,393,927.50
Step by Step Solution
- Step 1: Write the proportion equation
10,218,286.62 : 15,322,979.31 = 2,930,135.82 : x - Step 2: Convert to fraction form
10,218,286.62/15,322,979.31 = 2,930,135.82/x - Step 3: Cross multiply
10,218,286.62x = 15,322,979.31 × 2,930,135.82 - Step 4: Simplify right side
10,218,286.62x = 44,898,410,545,349.88 - Step 5: Solve for x
x = 44,898,410,545,349.88/10,218,286.62 - Step 6: Final answer
x = 4,393,927.50
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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.