Home / 20,667,241.60-31,007,831.52-9,151,136.56

Finding the Fourth Proportional to 20,667,241.60, 31,007,831.52 and 9,151,136.56

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Solution

The fourth proportional to 20,667,241.60, 31,007,831.52 and 9,151,136.56 is: 13,729,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667,241.60 : 31,007,831.52 = 9,151,136.56 : x
  2. Step 2: Convert to fraction form
    20,667,241.60/31,007,831.52 = 9,151,136.56/x
  3. Step 3: Cross multiply
    20,667,241.60x = 31,007,831.52 × 9,151,136.56
  4. Step 4: Simplify right side
    20,667,241.60x = 283,756,900,668,992.38
  5. Step 5: Solve for x
    x = 283,756,900,668,992.38/20,667,241.60
  6. Step 6: Final answer
    x = 13,729,790.66

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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.