Home / 126,109,255.24-189,169,520.46-38,664,480.52

Finding the Fourth Proportional to 126,109,255.24, 189,169,520.46 and 38,664,480.52

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Solution

The fourth proportional to 126,109,255.24, 189,169,520.46 and 38,664,480.52 is: 57,998,449.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,109,255.24 : 189,169,520.46 = 38,664,480.52 : x
  2. Step 2: Convert to fraction form
    126,109,255.24/189,169,520.46 = 38,664,480.52/x
  3. Step 3: Cross multiply
    126,109,255.24x = 189,169,520.46 × 38,664,480.52
  4. Step 4: Simplify right side
    126,109,255.24x = 7,314,141,238,803,412
  5. Step 5: Solve for x
    x = 7,314,141,238,803,412/126,109,255.24
  6. Step 6: Final answer
    x = 57,998,449.24

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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.