Finding the Fourth Proportional to 5,419,408.87, 7,479,114.92 and 3,127,717.18
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Solution
The fourth proportional to 5,419,408.87, 7,479,114.92 and 3,127,717.18 is: 4,316,440.55
Step by Step Solution
- Step 1: Write the proportion equation
5,419,408.87 : 7,479,114.92 = 3,127,717.18 : x - Step 2: Convert to fraction form
5,419,408.87/7,479,114.92 = 3,127,717.18/x - Step 3: Cross multiply
5,419,408.87x = 7,479,114.92 × 3,127,717.18 - Step 4: Simplify right side
5,419,408.87x = 23,392,556,226,478.33 - Step 5: Solve for x
x = 23,392,556,226,478.33/5,419,408.87 - Step 6: Final answer
x = 4,316,440.55
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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.