Home / 5,419,676.92-7,478,615.16-3,128,575.72

Finding the Fourth Proportional to 5,419,676.92, 7,478,615.16 and 3,128,575.72

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Solution

The fourth proportional to 5,419,676.92, 7,478,615.16 and 3,128,575.72 is: 4,317,123.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419,676.92 : 7,478,615.16 = 3,128,575.72 : x
  2. Step 2: Convert to fraction form
    5,419,676.92/7,478,615.16 = 3,128,575.72/x
  3. Step 3: Cross multiply
    5,419,676.92x = 7,478,615.16 × 3,128,575.72
  4. Step 4: Simplify right side
    5,419,676.92x = 23,397,413,808,799.92
  5. Step 5: Solve for x
    x = 23,397,413,808,799.92/5,419,676.92
  6. Step 6: Final answer
    x = 4,317,123.36

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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.