Finding the Fourth Proportional to 15,647,898.44, 21,593,778.09 and 8,677,451.18
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Solution
The fourth proportional to 15,647,898.44, 21,593,778.09 and 8,677,451.18 is: 11,974,704.20
Step by Step Solution
- Step 1: Write the proportion equation
15,647,898.44 : 21,593,778.09 = 8,677,451.18 : x - Step 2: Convert to fraction form
15,647,898.44/21,593,778.09 = 8,677,451.18/x - Step 3: Cross multiply
15,647,898.44x = 21,593,778.09 × 8,677,451.18 - Step 4: Simplify right side
15,647,898.44x = 187,378,955,059,759.78 - Step 5: Solve for x
x = 187,378,955,059,759.78/15,647,898.44 - Step 6: Final answer
x = 11,974,704.20
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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.