Finding the Fourth Proportional to 2,139,067.42, 3,206,442.08 and 1,340,909.49
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Solution
The fourth proportional to 2,139,067.42, 3,206,442.08 and 1,340,909.49 is: 2,010,010.79
Step by Step Solution
- Step 1: Write the proportion equation
2,139,067.42 : 3,206,442.08 = 1,340,909.49 : x - Step 2: Convert to fraction form
2,139,067.42/3,206,442.08 = 1,340,909.49/x - Step 3: Cross multiply
2,139,067.42x = 3,206,442.08 × 1,340,909.49 - Step 4: Simplify right side
2,139,067.42x = 4,299,548,591,470.58 - Step 5: Solve for x
x = 4,299,548,591,470.58/2,139,067.42 - Step 6: Final answer
x = 2,010,010.79
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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.