Home / 485,116,831.20-727,706,739.60-255,534,319.20

Finding the Fourth Proportional to 485,116,831.20, 727,706,739.60 and 255,534,319.20

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Solution

The fourth proportional to 485,116,831.20, 727,706,739.60 and 255,534,319.20 is: 383,318,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,116,831.20 : 727,706,739.60 = 255,534,319.20 : x
  2. Step 2: Convert to fraction form
    485,116,831.20/727,706,739.60 = 255,534,319.20/x
  3. Step 3: Cross multiply
    485,116,831.20x = 727,706,739.60 × 255,534,319.20
  4. Step 4: Simplify right side
    485,116,831.20x = 185,954,046,280,937,664
  5. Step 5: Solve for x
    x = 185,954,046,280,937,664/485,116,831.20
  6. Step 6: Final answer
    x = 383,318,067.57

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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.