Home / 131,049,719.40-196,723,878.30-77,227,357.80

Finding the Fourth Proportional to 131,049,719.40, 196,723,878.30 and 77,227,357.80

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Solution

The fourth proportional to 131,049,719.40, 196,723,878.30 and 77,227,357.80 is: 115,929,018.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,049,719.40 : 196,723,878.30 = 77,227,357.80 : x
  2. Step 2: Convert to fraction form
    131,049,719.40/196,723,878.30 = 77,227,357.80/x
  3. Step 3: Cross multiply
    131,049,719.40x = 196,723,878.30 × 77,227,357.80
  4. Step 4: Simplify right side
    131,049,719.40x = 15,192,465,337,277,756
  5. Step 5: Solve for x
    x = 15,192,465,337,277,756/131,049,719.40
  6. Step 6: Final answer
    x = 115,929,018.44

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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.