Home / 20,800,148.28-31,174,667.62-11,683,081.09

Finding the Fourth Proportional to 20,800,148.28, 31,174,667.62 and 11,683,081.09

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Solution

The fourth proportional to 20,800,148.28, 31,174,667.62 and 11,683,081.09 is: 17,510,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,148.28 : 31,174,667.62 = 11,683,081.09 : x
  2. Step 2: Convert to fraction form
    20,800,148.28/31,174,667.62 = 11,683,081.09/x
  3. Step 3: Cross multiply
    20,800,148.28x = 31,174,667.62 × 11,683,081.09
  4. Step 4: Simplify right side
    20,800,148.28x = 364,216,169,758,257.31
  5. Step 5: Solve for x
    x = 364,216,169,758,257.31/20,800,148.28
  6. Step 6: Final answer
    x = 17,510,267.95

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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.