Home / 13,135,067.20-19,669,423.20-8,622,913.60

Finding the Fourth Proportional to 13,135,067.20, 19,669,423.20 and 8,622,913.60

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Solution

The fourth proportional to 13,135,067.20, 19,669,423.20 and 8,622,913.60 is: 12,912,589.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135,067.20 : 19,669,423.20 = 8,622,913.60 : x
  2. Step 2: Convert to fraction form
    13,135,067.20/19,669,423.20 = 8,622,913.60/x
  3. Step 3: Cross multiply
    13,135,067.20x = 19,669,423.20 × 8,622,913.60
  4. Step 4: Simplify right side
    13,135,067.20x = 169,607,736,815,435.50
  5. Step 5: Solve for x
    x = 169,607,736,815,435.50/13,135,067.20
  6. Step 6: Final answer
    x = 12,912,589.96

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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.