Home / 20,408,215.44-28,163,334.78-11,240,858.19

Finding the Fourth Proportional to 20,408,215.44, 28,163,334.78 and 11,240,858.19

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Solution

The fourth proportional to 20,408,215.44, 28,163,334.78 and 11,240,858.19 is: 15,512,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,215.44 : 28,163,334.78 = 11,240,858.19 : x
  2. Step 2: Convert to fraction form
    20,408,215.44/28,163,334.78 = 11,240,858.19/x
  3. Step 3: Cross multiply
    20,408,215.44x = 28,163,334.78 × 11,240,858.19
  4. Step 4: Simplify right side
    20,408,215.44x = 316,580,052,419,474.88
  5. Step 5: Solve for x
    x = 316,580,052,419,474.88/20,408,215.44
  6. Step 6: Final answer
    x = 15,512,382.91

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Double scale
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1.5x scale

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.