Home / 20,408,254.44-28,163,388.60-11,240,897.28

Finding the Fourth Proportional to 20,408,254.44, 28,163,388.60 and 11,240,897.28

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Solution

The fourth proportional to 20,408,254.44, 28,163,388.60 and 11,240,897.28 is: 15,512,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408,254.44 : 28,163,388.60 = 11,240,897.28 : x
  2. Step 2: Convert to fraction form
    20,408,254.44/28,163,388.60 = 11,240,897.28/x
  3. Step 3: Cross multiply
    20,408,254.44x = 28,163,388.60 × 11,240,897.28
  4. Step 4: Simplify right side
    20,408,254.44x = 316,581,758,309,323
  5. Step 5: Solve for x
    x = 316,581,758,309,323/20,408,254.44
  6. Step 6: Final answer
    x = 15,512,436.85

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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.