Finding the Fourth Proportional to 18,441,872.70, 27,662,809.05 and 8,364,176.70
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Solution
The fourth proportional to 18,441,872.70, 27,662,809.05 and 8,364,176.70 is: 12,546,265.05
Step by Step Solution
- Step 1: Write the proportion equation
18,441,872.70 : 27,662,809.05 = 8,364,176.70 : x - Step 2: Convert to fraction form
18,441,872.70/27,662,809.05 = 8,364,176.70/x - Step 3: Cross multiply
18,441,872.70x = 27,662,809.05 × 8,364,176.70 - Step 4: Simplify right side
18,441,872.70x = 231,376,622,912,559.16 - Step 5: Solve for x
x = 231,376,622,912,559.16/18,441,872.70 - Step 6: Final answer
x = 12,546,265.05
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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.