Home / 21,101,708.87-29,119,732.67-11,682,919.52

Finding the Fourth Proportional to 21,101,708.87, 29,119,732.67 and 11,682,919.52

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Solution

The fourth proportional to 21,101,708.87, 29,119,732.67 and 11,682,919.52 is: 16,122,082.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101,708.87 : 29,119,732.67 = 11,682,919.52 : x
  2. Step 2: Convert to fraction form
    21,101,708.87/29,119,732.67 = 11,682,919.52/x
  3. Step 3: Cross multiply
    21,101,708.87x = 29,119,732.67 × 11,682,919.52
  4. Step 4: Simplify right side
    21,101,708.87x = 340,203,493,169,110.12
  5. Step 5: Solve for x
    x = 340,203,493,169,110.12/21,101,708.87
  6. Step 6: Final answer
    x = 16,122,082.59

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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.