Home / 631,123,778.97-870,934,107.96-352,667,590.65

Finding the Fourth Proportional to 631,123,778.97, 870,934,107.96 and 352,667,590.65

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Solution

The fourth proportional to 631,123,778.97, 870,934,107.96 and 352,667,590.65 is: 486,671,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,123,778.97 : 870,934,107.96 = 352,667,590.65 : x
  2. Step 2: Convert to fraction form
    631,123,778.97/870,934,107.96 = 352,667,590.65/x
  3. Step 3: Cross multiply
    631,123,778.97x = 870,934,107.96 × 352,667,590.65
  4. Step 4: Simplify right side
    631,123,778.97x = 307,150,233,469,160,192
  5. Step 5: Solve for x
    x = 307,150,233,469,160,192/631,123,778.97
  6. Step 6: Final answer
    x = 486,671,939.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.