Finding the Fourth Proportional to 18,191,251.80, 27,286,877.70 and 8,625,313.80
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Solution
The fourth proportional to 18,191,251.80, 27,286,877.70 and 8,625,313.80 is: 12,937,970.70
Step by Step Solution
- Step 1: Write the proportion equation
18,191,251.80 : 27,286,877.70 = 8,625,313.80 : x - Step 2: Convert to fraction form
18,191,251.80/27,286,877.70 = 8,625,313.80/x - Step 3: Cross multiply
18,191,251.80x = 27,286,877.70 × 8,625,313.80 - Step 4: Simplify right side
18,191,251.80x = 235,357,882,784,722.28 - Step 5: Solve for x
x = 235,357,882,784,722.28/18,191,251.80 - Step 6: Final answer
x = 12,937,970.70
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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.