Home / 485,108,779.20-727,694,661.60-255,526,267.20

Finding the Fourth Proportional to 485,108,779.20, 727,694,661.60 and 255,526,267.20

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Solution

The fourth proportional to 485,108,779.20, 727,694,661.60 and 255,526,267.20 is: 383,305,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,108,779.20 : 727,694,661.60 = 255,526,267.20 : x
  2. Step 2: Convert to fraction form
    485,108,779.20/727,694,661.60 = 255,526,267.20/x
  3. Step 3: Cross multiply
    485,108,779.20x = 727,694,661.60 × 255,526,267.20
  4. Step 4: Simplify right side
    485,108,779.20x = 185,945,100,540,015,168
  5. Step 5: Solve for x
    x = 185,945,100,540,015,168/485,108,779.20
  6. Step 6: Final answer
    x = 383,305,989.32

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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.