Home / 665,610,269.40-998,339,821.38-256,632,171.48

Finding the Fourth Proportional to 665,610,269.40, 998,339,821.38 and 256,632,171.48

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Solution

The fourth proportional to 665,610,269.40, 998,339,821.38 and 256,632,171.48 is: 384,919,115.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,610,269.40 : 998,339,821.38 = 256,632,171.48 : x
  2. Step 2: Convert to fraction form
    665,610,269.40/998,339,821.38 = 256,632,171.48/x
  3. Step 3: Cross multiply
    665,610,269.40x = 998,339,821.38 × 256,632,171.48
  4. Step 4: Simplify right side
    665,610,269.40x = 256,206,116,235,704,704
  5. Step 5: Solve for x
    x = 256,206,116,235,704,704/665,610,269.40
  6. Step 6: Final answer
    x = 384,919,115.61

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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.