Finding the Fourth Proportional to 5,189,408.38, 7,161,396.22 and 2,897,651.08
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Solution
The fourth proportional to 5,189,408.38, 7,161,396.22 and 2,897,651.08 is: 3,998,765.56
Step by Step Solution
- Step 1: Write the proportion equation
5,189,408.38 : 7,161,396.22 = 2,897,651.08 : x - Step 2: Convert to fraction form
5,189,408.38/7,161,396.22 = 2,897,651.08/x - Step 3: Cross multiply
5,189,408.38x = 7,161,396.22 × 2,897,651.08 - Step 4: Simplify right side
5,189,408.38x = 20,751,227,476,909.49 - Step 5: Solve for x
x = 20,751,227,476,909.49/5,189,408.38 - Step 6: Final answer
x = 3,998,765.56
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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.