Finding the Fourth Proportional to 8,857,107.20, 13,285,660.80 and 8,073,286.40
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Solution
The fourth proportional to 8,857,107.20, 13,285,660.80 and 8,073,286.40 is: 12,109,929.60
Step by Step Solution
- Step 1: Write the proportion equation
8,857,107.20 : 13,285,660.80 = 8,073,286.40 : x - Step 2: Convert to fraction form
8,857,107.20/13,285,660.80 = 8,073,286.40/x - Step 3: Cross multiply
8,857,107.20x = 13,285,660.80 × 8,073,286.40 - Step 4: Simplify right side
8,857,107.20x = 107,258,944,651,653.12 - Step 5: Solve for x
x = 107,258,944,651,653.12/8,857,107.20 - Step 6: Final answer
x = 12,109,929.60
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Similar ratio
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1.5x scale
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.