Home / 20,118,665.72-27,764,429.31-11,299,671.11

Finding the Fourth Proportional to 20,118,665.72, 27,764,429.31 and 11,299,671.11

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Solution

The fourth proportional to 20,118,665.72, 27,764,429.31 and 11,299,671.11 is: 15,593,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118,665.72 : 27,764,429.31 = 11,299,671.11 : x
  2. Step 2: Convert to fraction form
    20,118,665.72/27,764,429.31 = 11,299,671.11/x
  3. Step 3: Cross multiply
    20,118,665.72x = 27,764,429.31 × 11,299,671.11
  4. Step 4: Simplify right side
    20,118,665.72x = 313,728,919,621,022.06
  5. Step 5: Solve for x
    x = 313,728,919,621,022.06/20,118,665.72
  6. Step 6: Final answer
    x = 15,593,922.78

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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.