Home / 71,953,002.83-107,929,522.88-20,145,238.20

Finding the Fourth Proportional to 71,953,002.83, 107,929,522.88 and 20,145,238.20

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Solution

The fourth proportional to 71,953,002.83, 107,929,522.88 and 20,145,238.20 is: 30,217,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,953,002.83 : 107,929,522.88 = 20,145,238.20 : x
  2. Step 2: Convert to fraction form
    71,953,002.83/107,929,522.88 = 20,145,238.20/x
  3. Step 3: Cross multiply
    71,953,002.83x = 107,929,522.88 × 20,145,238.20
  4. Step 4: Simplify right side
    71,953,002.83x = 2,174,265,947,129,223.75
  5. Step 5: Solve for x
    x = 2,174,265,947,129,223.75/71,953,002.83
  6. Step 6: Final answer
    x = 30,217,862.52

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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.