Home / 485,121,391.20-727,713,579.60-255,538,879.20

Finding the Fourth Proportional to 485,121,391.20, 727,713,579.60 and 255,538,879.20

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Solution

The fourth proportional to 485,121,391.20, 727,713,579.60 and 255,538,879.20 is: 383,324,907.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,121,391.20 : 727,713,579.60 = 255,538,879.20 : x
  2. Step 2: Convert to fraction form
    485,121,391.20/727,713,579.60 = 255,538,879.20/x
  3. Step 3: Cross multiply
    485,121,391.20x = 727,713,579.60 × 255,538,879.20
  4. Step 4: Simplify right side
    485,121,391.20x = 185,959,112,509,603,968
  5. Step 5: Solve for x
    x = 185,959,112,509,603,968/485,121,391.20
  6. Step 6: Final answer
    x = 383,324,907.71

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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.