Home / 485,117,025.20-727,707,030.60-255,534,513.20

Finding the Fourth Proportional to 485,117,025.20, 727,707,030.60 and 255,534,513.20

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Solution

The fourth proportional to 485,117,025.20, 727,707,030.60 and 255,534,513.20 is: 383,318,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,117,025.20 : 727,707,030.60 = 255,534,513.20 : x
  2. Step 2: Convert to fraction form
    485,117,025.20/727,707,030.60 = 255,534,513.20/x
  3. Step 3: Cross multiply
    485,117,025.20x = 727,707,030.60 × 255,534,513.20
  4. Step 4: Simplify right side
    485,117,025.20x = 185,954,261,816,588,512
  5. Step 5: Solve for x
    x = 185,954,261,816,588,512/485,117,025.20
  6. Step 6: Final answer
    x = 383,318,358.58

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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.