Home / 485,309,617.20-727,892,670.33-178,529,985.54

Finding the Fourth Proportional to 485,309,617.20, 727,892,670.33 and 178,529,985.54

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Solution

The fourth proportional to 485,309,617.20, 727,892,670.33 and 178,529,985.54 is: 267,768,581.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,309,617.20 : 727,892,670.33 = 178,529,985.54 : x
  2. Step 2: Convert to fraction form
    485,309,617.20/727,892,670.33 = 178,529,985.54/x
  3. Step 3: Cross multiply
    485,309,617.20x = 727,892,670.33 × 178,529,985.54
  4. Step 4: Simplify right side
    485,309,617.20x = 129,950,667,908,686,896
  5. Step 5: Solve for x
    x = 129,950,667,908,686,896/485,309,617.20
  6. Step 6: Final answer
    x = 267,768,581.75

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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.