Home / 107,981,867.90-161,972,801.85-99,667,768.70

Finding the Fourth Proportional to 107,981,867.90, 161,972,801.85 and 99,667,768.70

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Solution

The fourth proportional to 107,981,867.90, 161,972,801.85 and 99,667,768.70 is: 149,501,653.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,981,867.90 : 161,972,801.85 = 99,667,768.70 : x
  2. Step 2: Convert to fraction form
    107,981,867.90/161,972,801.85 = 99,667,768.70/x
  3. Step 3: Cross multiply
    107,981,867.90x = 161,972,801.85 × 99,667,768.70
  4. Step 4: Simplify right side
    107,981,867.90x = 16,143,467,750,476,732
  5. Step 5: Solve for x
    x = 16,143,467,750,476,732/107,981,867.90
  6. Step 6: Final answer
    x = 149,501,653.05

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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.