Home / 485,066,747.60-727,694,599.80-140,031,630.80

Finding the Fourth Proportional to 485,066,747.60, 727,694,599.80 and 140,031,630.80

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Solution

The fourth proportional to 485,066,747.60, 727,694,599.80 and 140,031,630.80 is: 210,074,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,066,747.60 : 727,694,599.80 = 140,031,630.80 : x
  2. Step 2: Convert to fraction form
    485,066,747.60/727,694,599.80 = 140,031,630.80/x
  3. Step 3: Cross multiply
    485,066,747.60x = 727,694,599.80 × 140,031,630.80
  4. Step 4: Simplify right side
    485,066,747.60x = 101,900,261,534,347,360
  5. Step 5: Solve for x
    x = 101,900,261,534,347,360/485,066,747.60
  6. Step 6: Final answer
    x = 210,074,720.72

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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.