Home / 136,198,001.40-204,297,002.10-81,672,154.80

Finding the Fourth Proportional to 136,198,001.40, 204,297,002.10 and 81,672,154.80

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Solution

The fourth proportional to 136,198,001.40, 204,297,002.10 and 81,672,154.80 is: 122,508,232.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,198,001.40 : 204,297,002.10 = 81,672,154.80 : x
  2. Step 2: Convert to fraction form
    136,198,001.40/204,297,002.10 = 81,672,154.80/x
  3. Step 3: Cross multiply
    136,198,001.40x = 204,297,002.10 × 81,672,154.80
  4. Step 4: Simplify right side
    136,198,001.40x = 16,685,376,380,687,124
  5. Step 5: Solve for x
    x = 16,685,376,380,687,124/136,198,001.40
  6. Step 6: Final answer
    x = 122,508,232.20

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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.