Home / 136,198,001.90-204,297,002.85-81,672,155.30

Finding the Fourth Proportional to 136,198,001.90, 204,297,002.85 and 81,672,155.30

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Solution

The fourth proportional to 136,198,001.90, 204,297,002.85 and 81,672,155.30 is: 122,508,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,198,001.90 : 204,297,002.85 = 81,672,155.30 : x
  2. Step 2: Convert to fraction form
    136,198,001.90/204,297,002.85 = 81,672,155.30/x
  3. Step 3: Cross multiply
    136,198,001.90x = 204,297,002.85 × 81,672,155.30
  4. Step 4: Simplify right side
    136,198,001.90x = 16,685,376,544,089,742
  5. Step 5: Solve for x
    x = 16,685,376,544,089,742/136,198,001.90
  6. Step 6: Final answer
    x = 122,508,232.95

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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.