Finding the Fourth Proportional to 3,867,468.12, 5,337,201.12 and 2,125,123.56
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Solution
The fourth proportional to 3,867,468.12, 5,337,201.12 and 2,125,123.56 is: 2,932,722.78
Step by Step Solution
- Step 1: Write the proportion equation
3,867,468.12 : 5,337,201.12 = 2,125,123.56 : x - Step 2: Convert to fraction form
3,867,468.12/5,337,201.12 = 2,125,123.56/x - Step 3: Cross multiply
3,867,468.12x = 5,337,201.12 × 2,125,123.56 - Step 4: Simplify right side
3,867,468.12x = 11,342,211,844,570.39 - Step 5: Solve for x
x = 11,342,211,844,570.39/3,867,468.12 - Step 6: Final answer
x = 2,932,722.78
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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.