Finding the Fourth Proportional to 3,858,175.80, 5,324,023.08 and 2,139,232.68
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Solution
The fourth proportional to 3,858,175.80, 5,324,023.08 and 2,139,232.68 is: 2,951,997.20
Step by Step Solution
- Step 1: Write the proportion equation
3,858,175.80 : 5,324,023.08 = 2,139,232.68 : x - Step 2: Convert to fraction form
3,858,175.80/5,324,023.08 = 2,139,232.68/x - Step 3: Cross multiply
3,858,175.80x = 5,324,023.08 × 2,139,232.68 - Step 4: Simplify right side
3,858,175.80x = 11,389,324,161,810.26 - Step 5: Solve for x
x = 11,389,324,161,810.26/3,858,175.80 - Step 6: Final answer
x = 2,951,997.20
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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.