Home / 20,369,335.24-28,109,121.78-11,201,977

Finding the Fourth Proportional to 20,369,335.24, 28,109,121.78 and 11,201,977

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Solution

The fourth proportional to 20,369,335.24, 28,109,121.78 and 11,201,977 is: 15,458,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,369,335.24 : 28,109,121.78 = 11,201,977 : x
  2. Step 2: Convert to fraction form
    20,369,335.24/28,109,121.78 = 11,201,977/x
  3. Step 3: Cross multiply
    20,369,335.24x = 28,109,121.78 × 11,201,977
  4. Step 4: Simplify right side
    20,369,335.24x = 314,877,735,669,759.06
  5. Step 5: Solve for x
    x = 314,877,735,669,759.06/20,369,335.24
  6. Step 6: Final answer
    x = 15,458,419.82

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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.