Home / 20,607,279.47-28,438,452.41-11,314,768.25

Finding the Fourth Proportional to 20,607,279.47, 28,438,452.41 and 11,314,768.25

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Solution

The fourth proportional to 20,607,279.47, 28,438,452.41 and 11,314,768.25 is: 15,614,603.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607,279.47 : 28,438,452.41 = 11,314,768.25 : x
  2. Step 2: Convert to fraction form
    20,607,279.47/28,438,452.41 = 11,314,768.25/x
  3. Step 3: Cross multiply
    20,607,279.47x = 28,438,452.41 × 11,314,768.25
  4. Step 4: Simplify right side
    20,607,279.47x = 321,774,498,209,037.88
  5. Step 5: Solve for x
    x = 321,774,498,209,037.88/20,607,279.47
  6. Step 6: Final answer
    x = 15,614,603.51

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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.