Finding the Fourth Proportional to 8,083,553.80, 12,125,330.70 and 7,764,689.20
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Solution
The fourth proportional to 8,083,553.80, 12,125,330.70 and 7,764,689.20 is: 11,647,033.80
Step by Step Solution
- Step 1: Write the proportion equation
8,083,553.80 : 12,125,330.70 = 7,764,689.20 : x - Step 2: Convert to fraction form
8,083,553.80/12,125,330.70 = 7,764,689.20/x - Step 3: Cross multiply
8,083,553.80x = 12,125,330.70 × 7,764,689.20 - Step 4: Simplify right side
8,083,553.80x = 94,149,424,332,718.44 - Step 5: Solve for x
x = 94,149,424,332,718.44/8,083,553.80 - Step 6: Final answer
x = 11,647,033.80
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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.