Home / 138,244,337.70-207,286,790.40-51,991,463.40

Finding the Fourth Proportional to 138,244,337.70, 207,286,790.40 and 51,991,463.40

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Solution

The fourth proportional to 138,244,337.70, 207,286,790.40 and 51,991,463.40 is: 77,957,215.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,244,337.70 : 207,286,790.40 = 51,991,463.40 : x
  2. Step 2: Convert to fraction form
    138,244,337.70/207,286,790.40 = 51,991,463.40/x
  3. Step 3: Cross multiply
    138,244,337.70x = 207,286,790.40 × 51,991,463.40
  4. Step 4: Simplify right side
    138,244,337.70x = 10,777,143,576,385,072
  5. Step 5: Solve for x
    x = 10,777,143,576,385,072/138,244,337.70
  6. Step 6: Final answer
    x = 77,957,215.14

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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.