Finding the Fourth Proportional to 18,440,381.80, 27,660,572.70 and 8,874,443.80
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Solution
The fourth proportional to 18,440,381.80, 27,660,572.70 and 8,874,443.80 is: 13,311,665.70
Step by Step Solution
- Step 1: Write the proportion equation
18,440,381.80 : 27,660,572.70 = 8,874,443.80 : x - Step 2: Convert to fraction form
18,440,381.80/27,660,572.70 = 8,874,443.80/x - Step 3: Cross multiply
18,440,381.80x = 27,660,572.70 × 8,874,443.80 - Step 4: Simplify right side
18,440,381.80x = 245,472,197,901,964.28 - Step 5: Solve for x
x = 245,472,197,901,964.28/18,440,381.80 - Step 6: Final answer
x = 13,311,665.70
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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.