Finding the Fourth Proportional to 2,930,067.92, 4,040,412.36 and 2,167,708.88
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Solution
The fourth proportional to 2,930,067.92, 4,040,412.36 and 2,167,708.88 is: 2,989,158.61
Step by Step Solution
- Step 1: Write the proportion equation
2,930,067.92 : 4,040,412.36 = 2,167,708.88 : x - Step 2: Convert to fraction form
2,930,067.92/4,040,412.36 = 2,167,708.88/x - Step 3: Cross multiply
2,930,067.92x = 4,040,412.36 × 2,167,708.88 - Step 4: Simplify right side
2,930,067.92x = 8,758,437,751,633.76 - Step 5: Solve for x
x = 8,758,437,751,633.76/2,930,067.92 - Step 6: Final answer
x = 2,989,158.61
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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.