Home / 13,310,103.76-18,367,943.20-7,198,532.26

Finding the Fourth Proportional to 13,310,103.76, 18,367,943.20 and 7,198,532.26

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Solution

The fourth proportional to 13,310,103.76, 18,367,943.20 and 7,198,532.26 is: 9,933,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,103.76 : 18,367,943.20 = 7,198,532.26 : x
  2. Step 2: Convert to fraction form
    13,310,103.76/18,367,943.20 = 7,198,532.26/x
  3. Step 3: Cross multiply
    13,310,103.76x = 18,367,943.20 × 7,198,532.26
  4. Step 4: Simplify right side
    13,310,103.76x = 132,222,231,611,131.45
  5. Step 5: Solve for x
    x = 132,222,231,611,131.45/13,310,103.76
  6. Step 6: Final answer
    x = 9,933,974.52

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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.