Home / 138,717,992.46-207,855,650.78-101,658,126.03

Finding the Fourth Proportional to 138,717,992.46, 207,855,650.78 and 101,658,126.03

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Solution

The fourth proportional to 138,717,992.46, 207,855,650.78 and 101,658,126.03 is: 152,324,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,717,992.46 : 207,855,650.78 = 101,658,126.03 : x
  2. Step 2: Convert to fraction form
    138,717,992.46/207,855,650.78 = 101,658,126.03/x
  3. Step 3: Cross multiply
    138,717,992.46x = 207,855,650.78 × 101,658,126.03
  4. Step 4: Simplify right side
    138,717,992.46x = 21,130,215,942,134,376
  5. Step 5: Solve for x
    x = 21,130,215,942,134,376/138,717,992.46
  6. Step 6: Final answer
    x = 152,324,983.71

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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.