Home / 18,692,257.80-28,067,255.10-10,189,201.80

Finding the Fourth Proportional to 18,692,257.80, 28,067,255.10 and 10,189,201.80

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Solution

The fourth proportional to 18,692,257.80, 28,067,255.10 and 10,189,201.80 is: 15,299,538.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,257.80 : 28,067,255.10 = 10,189,201.80 : x
  2. Step 2: Convert to fraction form
    18,692,257.80/28,067,255.10 = 10,189,201.80/x
  3. Step 3: Cross multiply
    18,692,257.80x = 28,067,255.10 × 10,189,201.80
  4. Step 4: Simplify right side
    18,692,257.80x = 285,982,926,185,979.19
  5. Step 5: Solve for x
    x = 285,982,926,185,979.19/18,692,257.80
  6. Step 6: Final answer
    x = 15,299,538.95

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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.