Home / 107,981,910.40-161,972,865.60-99,667,811.20

Finding the Fourth Proportional to 107,981,910.40, 161,972,865.60 and 99,667,811.20

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Solution

The fourth proportional to 107,981,910.40, 161,972,865.60 and 99,667,811.20 is: 149,501,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,981,910.40 : 161,972,865.60 = 99,667,811.20 : x
  2. Step 2: Convert to fraction form
    107,981,910.40/161,972,865.60 = 99,667,811.20/x
  3. Step 3: Cross multiply
    107,981,910.40x = 161,972,865.60 × 99,667,811.20
  4. Step 4: Simplify right side
    107,981,910.40x = 16,143,480,988,143,774
  5. Step 5: Solve for x
    x = 16,143,480,988,143,774/107,981,910.40
  6. Step 6: Final answer
    x = 149,501,716.80

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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.