Home / 129,103,519.26-178,162,923.42-73,349,037.12

Finding the Fourth Proportional to 129,103,519.26, 178,162,923.42 and 73,349,037.12

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Solution

The fourth proportional to 129,103,519.26, 178,162,923.42 and 73,349,037.12 is: 101,221,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,103,519.26 : 178,162,923.42 = 73,349,037.12 : x
  2. Step 2: Convert to fraction form
    129,103,519.26/178,162,923.42 = 73,349,037.12/x
  3. Step 3: Cross multiply
    129,103,519.26x = 178,162,923.42 × 73,349,037.12
  4. Step 4: Simplify right side
    129,103,519.26x = 13,068,078,883,341,298
  5. Step 5: Solve for x
    x = 13,068,078,883,341,298/129,103,519.26
  6. Step 6: Final answer
    x = 101,221,709.20

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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.