Home / 20,617,715.97-28,450,788.84-11,916,452.16

Finding the Fourth Proportional to 20,617,715.97, 28,450,788.84 and 11,916,452.16

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Solution

The fourth proportional to 20,617,715.97, 28,450,788.84 and 11,916,452.16 is: 16,443,745.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,715.97 : 28,450,788.84 = 11,916,452.16 : x
  2. Step 2: Convert to fraction form
    20,617,715.97/28,450,788.84 = 11,916,452.16/x
  3. Step 3: Cross multiply
    20,617,715.97x = 28,450,788.84 × 11,916,452.16
  4. Step 4: Simplify right side
    20,617,715.97x = 339,032,464,126,121.88
  5. Step 5: Solve for x
    x = 339,032,464,126,121.88/20,617,715.97
  6. Step 6: Final answer
    x = 16,443,745.01

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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.