Home / 485,066,743.60-727,694,593.80-140,031,626.80

Finding the Fourth Proportional to 485,066,743.60, 727,694,593.80 and 140,031,626.80

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Solution

The fourth proportional to 485,066,743.60, 727,694,593.80 and 140,031,626.80 is: 210,074,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,066,743.60 : 727,694,593.80 = 140,031,626.80 : x
  2. Step 2: Convert to fraction form
    485,066,743.60/727,694,593.80 = 140,031,626.80/x
  3. Step 3: Cross multiply
    485,066,743.60x = 727,694,593.80 × 140,031,626.80
  4. Step 4: Simplify right side
    485,066,743.60x = 101,900,257,783,379,200
  5. Step 5: Solve for x
    x = 101,900,257,783,379,200/485,066,743.60
  6. Step 6: Final answer
    x = 210,074,714.72

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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.