Home / 485,117,743.20-727,708,107.60-255,535,231.20

Finding the Fourth Proportional to 485,117,743.20, 727,708,107.60 and 255,535,231.20

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Solution

The fourth proportional to 485,117,743.20, 727,708,107.60 and 255,535,231.20 is: 383,319,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,117,743.20 : 727,708,107.60 = 255,535,231.20 : x
  2. Step 2: Convert to fraction form
    485,117,743.20/727,708,107.60 = 255,535,231.20/x
  3. Step 3: Cross multiply
    485,117,743.20x = 727,708,107.60 × 255,535,231.20
  4. Step 4: Simplify right side
    485,117,743.20x = 185,955,059,521,680,480
  5. Step 5: Solve for x
    x = 185,955,059,521,680,480/485,117,743.20
  6. Step 6: Final answer
    x = 383,319,435.60

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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.