Home / 485,309,834.72-727,892,996.32-178,530,203.04

Finding the Fourth Proportional to 485,309,834.72, 727,892,996.32 and 178,530,203.04

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Solution

The fourth proportional to 485,309,834.72, 727,892,996.32 and 178,530,203.04 is: 267,768,907.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,309,834.72 : 727,892,996.32 = 178,530,203.04 : x
  2. Step 2: Convert to fraction form
    485,309,834.72/727,892,996.32 = 178,530,203.04/x
  3. Step 3: Cross multiply
    485,309,834.72x = 727,892,996.32 × 178,530,203.04
  4. Step 4: Simplify right side
    485,309,834.72x = 129,950,884,424,403,584
  5. Step 5: Solve for x
    x = 129,950,884,424,403,584/485,309,834.72
  6. Step 6: Final answer
    x = 267,768,907.88

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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.