Home / 115,182,002.20-172,773,003.30-72,135,281.20

Finding the Fourth Proportional to 115,182,002.20, 172,773,003.30 and 72,135,281.20

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Solution

The fourth proportional to 115,182,002.20, 172,773,003.30 and 72,135,281.20 is: 108,202,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,182,002.20 : 172,773,003.30 = 72,135,281.20 : x
  2. Step 2: Convert to fraction form
    115,182,002.20/172,773,003.30 = 72,135,281.20/x
  3. Step 3: Cross multiply
    115,182,002.20x = 172,773,003.30 × 72,135,281.20
  4. Step 4: Simplify right side
    115,182,002.20x = 12,463,029,176,814,030
  5. Step 5: Solve for x
    x = 12,463,029,176,814,030/115,182,002.20
  6. Step 6: Final answer
    x = 108,202,921.80

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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.