Finding the Fourth Proportional to 3,858,854.76, 5,325,231.84 and 2,140,134.12
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Solution
The fourth proportional to 3,858,854.76, 5,325,231.84 and 2,140,134.12 is: 2,953,391.89
Step by Step Solution
- Step 1: Write the proportion equation
3,858,854.76 : 5,325,231.84 = 2,140,134.12 : x - Step 2: Convert to fraction form
3,858,854.76/5,325,231.84 = 2,140,134.12/x - Step 3: Cross multiply
3,858,854.76x = 5,325,231.84 × 2,140,134.12 - Step 4: Simplify right side
3,858,854.76x = 11,396,710,357,694.38 - Step 5: Solve for x
x = 11,396,710,357,694.38/3,858,854.76 - Step 6: Final answer
x = 2,953,391.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.