Home / 129,307,759.68-178,448,872-73,551,750.72

Finding the Fourth Proportional to 129,307,759.68, 178,448,872 and 73,551,750.72

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Solution

The fourth proportional to 129,307,759.68, 178,448,872 and 73,551,750.72 is: 101,503,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,307,759.68 : 178,448,872 = 73,551,750.72 : x
  2. Step 2: Convert to fraction form
    129,307,759.68/178,448,872 = 73,551,750.72/x
  3. Step 3: Cross multiply
    129,307,759.68x = 178,448,872 × 73,551,750.72
  4. Step 4: Simplify right side
    129,307,759.68x = 13,125,226,949,609,188
  5. Step 5: Solve for x
    x = 13,125,226,949,609,188/129,307,759.68
  6. Step 6: Final answer
    x = 101,503,784.32

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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.