Home / 129,395,568.74-194,028,449.42-43,103,637.86

Finding the Fourth Proportional to 129,395,568.74, 194,028,449.42 and 43,103,637.86

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Solution

The fourth proportional to 129,395,568.74, 194,028,449.42 and 43,103,637.86 is: 64,633,836.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,395,568.74 : 194,028,449.42 = 43,103,637.86 : x
  2. Step 2: Convert to fraction form
    129,395,568.74/194,028,449.42 = 43,103,637.86/x
  3. Step 3: Cross multiply
    129,395,568.74x = 194,028,449.42 × 43,103,637.86
  4. Step 4: Simplify right side
    129,395,568.74x = 8,363,332,017,474,624
  5. Step 5: Solve for x
    x = 8,363,332,017,474,624/129,395,568.74
  6. Step 6: Final answer
    x = 64,633,836.38

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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.