Home / 129,375,506.88-178,553,856.96-73,634,480.64

Finding the Fourth Proportional to 129,375,506.88, 178,553,856.96 and 73,634,480.64

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Solution

The fourth proportional to 129,375,506.88, 178,553,856.96 and 73,634,480.64 is: 101,624,494.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,375,506.88 : 178,553,856.96 = 73,634,480.64 : x
  2. Step 2: Convert to fraction form
    129,375,506.88/178,553,856.96 = 73,634,480.64/x
  3. Step 3: Cross multiply
    129,375,506.88x = 178,553,856.96 × 73,634,480.64
  4. Step 4: Simplify right side
    129,375,506.88x = 13,147,720,523,518,450
  5. Step 5: Solve for x
    x = 13,147,720,523,518,450/129,375,506.88
  6. Step 6: Final answer
    x = 101,624,494.78

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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.