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Finding the Fourth Proportional to 485,309,662.60, 727,964,493.90 and 485,309,662.60

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Solution

The fourth proportional to 485,309,662.60, 727,964,493.90 and 485,309,662.60 is: 727,964,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,309,662.60 : 727,964,493.90 = 485,309,662.60 : x
  2. Step 2: Convert to fraction form
    485,309,662.60/727,964,493.90 = 485,309,662.60/x
  3. Step 3: Cross multiply
    485,309,662.60x = 727,964,493.90 × 485,309,662.60
  4. Step 4: Simplify right side
    485,309,662.60x = 353,288,202,919,388,736
  5. Step 5: Solve for x
    x = 353,288,202,919,388,736/485,309,662.60
  6. Step 6: Final answer
    x = 727,964,493.90

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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.