Home / 138,786,510.52-191,526,525.30-76,907,882.44

Finding the Fourth Proportional to 138,786,510.52, 191,526,525.30 and 76,907,882.44

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Solution

The fourth proportional to 138,786,510.52, 191,526,525.30 and 76,907,882.44 is: 106,133,509.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,786,510.52 : 191,526,525.30 = 76,907,882.44 : x
  2. Step 2: Convert to fraction form
    138,786,510.52/191,526,525.30 = 76,907,882.44/x
  3. Step 3: Cross multiply
    138,786,510.52x = 191,526,525.30 × 76,907,882.44
  4. Step 4: Simplify right side
    138,786,510.52x = 14,729,899,491,914,086
  5. Step 5: Solve for x
    x = 14,729,899,491,914,086/138,786,510.52
  6. Step 6: Final answer
    x = 106,133,509.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.