Finding the Fourth Proportional to 11,505,704.40, 15,877,772.10 and 6,278,815.92
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Solution
The fourth proportional to 11,505,704.40, 15,877,772.10 and 6,278,815.92 is: 8,664,711.41
Step by Step Solution
- Step 1: Write the proportion equation
11,505,704.40 : 15,877,772.10 = 6,278,815.92 : x - Step 2: Convert to fraction form
11,505,704.40/15,877,772.10 = 6,278,815.92/x - Step 3: Cross multiply
11,505,704.40x = 15,877,772.10 × 6,278,815.92 - Step 4: Simplify right side
11,505,704.40x = 99,693,608,235,611.83 - Step 5: Solve for x
x = 99,693,608,235,611.83/11,505,704.40 - Step 6: Final answer
x = 8,664,711.41
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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.