Home / 485,112,076.80-727,668,115.20-140,100,579.60

Finding the Fourth Proportional to 485,112,076.80, 727,668,115.20 and 140,100,579.60

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Solution

The fourth proportional to 485,112,076.80, 727,668,115.20 and 140,100,579.60 is: 210,150,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,112,076.80 : 727,668,115.20 = 140,100,579.60 : x
  2. Step 2: Convert to fraction form
    485,112,076.80/727,668,115.20 = 140,100,579.60/x
  3. Step 3: Cross multiply
    485,112,076.80x = 727,668,115.20 × 140,100,579.60
  4. Step 4: Simplify right side
    485,112,076.80x = 101,946,724,695,959,568
  5. Step 5: Solve for x
    x = 101,946,724,695,959,568/485,112,076.80
  6. Step 6: Final answer
    x = 210,150,869.40

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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.