Home / 15,216,122.09-20,986,004.68-13,376,647.33

Finding the Fourth Proportional to 15,216,122.09, 20,986,004.68 and 13,376,647.33

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Solution

The fourth proportional to 15,216,122.09, 20,986,004.68 and 13,376,647.33 is: 18,449,009.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,122.09 : 20,986,004.68 = 13,376,647.33 : x
  2. Step 2: Convert to fraction form
    15,216,122.09/20,986,004.68 = 13,376,647.33/x
  3. Step 3: Cross multiply
    15,216,122.09x = 20,986,004.68 × 13,376,647.33
  4. Step 4: Simplify right side
    15,216,122.09x = 280,722,383,384,182.88
  5. Step 5: Solve for x
    x = 280,722,383,384,182.88/15,216,122.09
  6. Step 6: Final answer
    x = 18,449,009.65

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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.