Home / 13,629,805.20-18,809,251.31-7,434,879.44

Finding the Fourth Proportional to 13,629,805.20, 18,809,251.31 and 7,434,879.44

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Solution

The fourth proportional to 13,629,805.20, 18,809,251.31 and 7,434,879.44 is: 10,260,199.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629,805.20 : 18,809,251.31 = 7,434,879.44 : x
  2. Step 2: Convert to fraction form
    13,629,805.20/18,809,251.31 = 7,434,879.44/x
  3. Step 3: Cross multiply
    13,629,805.20x = 18,809,251.31 × 7,434,879.44
  4. Step 4: Simplify right side
    13,629,805.20x = 139,844,515,771,053
  5. Step 5: Solve for x
    x = 139,844,515,771,053/13,629,805.20
  6. Step 6: Final answer
    x = 10,260,199.15

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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.