Home / 128,149,629.58-176,846,494.88-69,412,294.70

Finding the Fourth Proportional to 128,149,629.58, 176,846,494.88 and 69,412,294.70

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Solution

The fourth proportional to 128,149,629.58, 176,846,494.88 and 69,412,294.70 is: 95,788,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,149,629.58 : 176,846,494.88 = 69,412,294.70 : x
  2. Step 2: Convert to fraction form
    128,149,629.58/176,846,494.88 = 69,412,294.70/x
  3. Step 3: Cross multiply
    128,149,629.58x = 176,846,494.88 × 69,412,294.70
  4. Step 4: Simplify right side
    128,149,629.58x = 12,275,321,018,561,898
  5. Step 5: Solve for x
    x = 12,275,321,018,561,898/128,149,629.58
  6. Step 6: Final answer
    x = 95,788,969.96

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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.