Finding the Fourth Proportional to 10,368,818.20, 15,553,227.30 and 8,857,163.80
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Solution
The fourth proportional to 10,368,818.20, 15,553,227.30 and 8,857,163.80 is: 13,285,745.70
Step by Step Solution
- Step 1: Write the proportion equation
10,368,818.20 : 15,553,227.30 = 8,857,163.80 : x - Step 2: Convert to fraction form
10,368,818.20/15,553,227.30 = 8,857,163.80/x - Step 3: Cross multiply
10,368,818.20x = 15,553,227.30 × 8,857,163.80 - Step 4: Simplify right side
10,368,818.20x = 137,757,481,814,731.77 - Step 5: Solve for x
x = 137,757,481,814,731.77/10,368,818.20 - Step 6: Final answer
x = 13,285,745.70
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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.