Finding the Fourth Proportional to 18,144,529.80, 27,216,794.70 and 13,609,566.60
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Solution
The fourth proportional to 18,144,529.80, 27,216,794.70 and 13,609,566.60 is: 20,414,349.90
Step by Step Solution
- Step 1: Write the proportion equation
18,144,529.80 : 27,216,794.70 = 13,609,566.60 : x - Step 2: Convert to fraction form
18,144,529.80/27,216,794.70 = 13,609,566.60/x - Step 3: Cross multiply
18,144,529.80x = 27,216,794.70 × 13,609,566.60 - Step 4: Simplify right side
18,144,529.80x = 370,408,780,108,177 - Step 5: Solve for x
x = 370,408,780,108,177/18,144,529.80 - Step 6: Final answer
x = 20,414,349.90
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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.