Home / 28,135,989.20-42,203,193.24-8,967,894.32

Finding the Fourth Proportional to 28,135,989.20, 42,203,193.24 and 8,967,894.32

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Solution

The fourth proportional to 28,135,989.20, 42,203,193.24 and 8,967,894.32 is: 13,451,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135,989.20 : 42,203,193.24 = 8,967,894.32 : x
  2. Step 2: Convert to fraction form
    28,135,989.20/42,203,193.24 = 8,967,894.32/x
  3. Step 3: Cross multiply
    28,135,989.20x = 42,203,193.24 × 8,967,894.32
  4. Step 4: Simplify right side
    28,135,989.20x = 378,473,776,942,858.44
  5. Step 5: Solve for x
    x = 378,473,776,942,858.44/28,135,989.20
  6. Step 6: Final answer
    x = 13,451,589.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.