Finding the Fourth Proportional to 12,127,122.80, 18,192,785.62 and 4,942,565.36
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Solution
The fourth proportional to 12,127,122.80, 18,192,785.62 and 4,942,565.36 is: 7,414,704.50
Step by Step Solution
- Step 1: Write the proportion equation
12,127,122.80 : 18,192,785.62 = 4,942,565.36 : x - Step 2: Convert to fraction form
12,127,122.80/18,192,785.62 = 4,942,565.36/x - Step 3: Cross multiply
12,127,122.80x = 18,192,785.62 × 4,942,565.36 - Step 4: Simplify right side
12,127,122.80x = 89,919,032,007,318.14 - Step 5: Solve for x
x = 89,919,032,007,318.14/12,127,122.80 - Step 6: Final answer
x = 7,414,704.50
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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.