Finding the Fourth Proportional to 9,172,939.55, 13,729,468.77 and 6,743,449.68
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Solution
The fourth proportional to 9,172,939.55, 13,729,468.77 and 6,743,449.68 is: 10,093,163.85
Step by Step Solution
- Step 1: Write the proportion equation
9,172,939.55 : 13,729,468.77 = 6,743,449.68 : x - Step 2: Convert to fraction form
9,172,939.55/13,729,468.77 = 6,743,449.68/x - Step 3: Cross multiply
9,172,939.55x = 13,729,468.77 × 6,743,449.68 - Step 4: Simplify right side
9,172,939.55x = 92,583,981,783,626.48 - Step 5: Solve for x
x = 92,583,981,783,626.48/9,172,939.55 - Step 6: Final answer
x = 10,093,163.85
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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.