Finding the Fourth Proportional to 71,524,006.80, 107,286,010.20 and 66,741,037.80
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Solution
The fourth proportional to 71,524,006.80, 107,286,010.20 and 66,741,037.80 is: 100,111,556.70
Step by Step Solution
- Step 1: Write the proportion equation
71,524,006.80 : 107,286,010.20 = 66,741,037.80 : x - Step 2: Convert to fraction form
71,524,006.80/107,286,010.20 = 66,741,037.80/x - Step 3: Cross multiply
71,524,006.80x = 107,286,010.20 × 66,741,037.80 - Step 4: Simplify right side
71,524,006.80x = 7,160,379,662,169,385 - Step 5: Solve for x
x = 7,160,379,662,169,385/71,524,006.80 - Step 6: Final answer
x = 100,111,556.70
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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.