Home / 28,860,704.92-39,827,280.76-15,629,774.46

Finding the Fourth Proportional to 28,860,704.92, 39,827,280.76 and 15,629,774.46

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Solution

The fourth proportional to 28,860,704.92, 39,827,280.76 and 15,629,774.46 is: 21,568,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,860,704.92 : 39,827,280.76 = 15,629,774.46 : x
  2. Step 2: Convert to fraction form
    28,860,704.92/39,827,280.76 = 15,629,774.46/x
  3. Step 3: Cross multiply
    28,860,704.92x = 39,827,280.76 × 15,629,774.46
  4. Step 4: Simplify right side
    28,860,704.92x = 622,491,415,669,499.12
  5. Step 5: Solve for x
    x = 622,491,415,669,499.12/28,860,704.92
  6. Step 6: Final answer
    x = 21,568,822.29

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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.