Home / 5,172,142.57-7,751,238.68-2,615,161.40

Finding the Fourth Proportional to 5,172,142.57, 7,751,238.68 and 2,615,161.40

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Solution

The fourth proportional to 5,172,142.57, 7,751,238.68 and 2,615,161.40 is: 3,919,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,142.57 : 7,751,238.68 = 2,615,161.40 : x
  2. Step 2: Convert to fraction form
    5,172,142.57/7,751,238.68 = 2,615,161.40/x
  3. Step 3: Cross multiply
    5,172,142.57x = 7,751,238.68 × 2,615,161.40
  4. Step 4: Simplify right side
    5,172,142.57x = 20,270,740,198,122.95
  5. Step 5: Solve for x
    x = 20,270,740,198,122.95/5,172,142.57
  6. Step 6: Final answer
    x = 3,919,215.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.