Home / 129,764,712.72-194,622,262.68-38,888,301.72

Finding the Fourth Proportional to 129,764,712.72, 194,622,262.68 and 38,888,301.72

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Solution

The fourth proportional to 129,764,712.72, 194,622,262.68 and 38,888,301.72 is: 58,325,018.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,764,712.72 : 194,622,262.68 = 38,888,301.72 : x
  2. Step 2: Convert to fraction form
    129,764,712.72/194,622,262.68 = 38,888,301.72/x
  3. Step 3: Cross multiply
    129,764,712.72x = 194,622,262.68 × 38,888,301.72
  4. Step 4: Simplify right side
    129,764,712.72x = 7,568,529,272,528,936
  5. Step 5: Solve for x
    x = 7,568,529,272,528,936/129,764,712.72
  6. Step 6: Final answer
    x = 58,325,018.52

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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.