Finding the Fourth Proportional to 10,393,833.40, 15,568,631.70 and 8,403,177.40
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Solution
The fourth proportional to 10,393,833.40, 15,568,631.70 and 8,403,177.40 is: 12,586,883.88
Step by Step Solution
- Step 1: Write the proportion equation
10,393,833.40 : 15,568,631.70 = 8,403,177.40 : x - Step 2: Convert to fraction form
10,393,833.40/15,568,631.70 = 8,403,177.40/x - Step 3: Cross multiply
10,393,833.40x = 15,568,631.70 × 8,403,177.40 - Step 4: Simplify right side
10,393,833.40x = 130,825,974,050,363.58 - Step 5: Solve for x
x = 130,825,974,050,363.58/10,393,833.40 - Step 6: Final answer
x = 12,586,883.88
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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.