Home / 28,103,198.25-38,770,538.02-18,813,761.24

Finding the Fourth Proportional to 28,103,198.25, 38,770,538.02 and 18,813,761.24

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Solution

The fourth proportional to 28,103,198.25, 38,770,538.02 and 18,813,761.24 is: 25,955,040.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103,198.25 : 38,770,538.02 = 18,813,761.24 : x
  2. Step 2: Convert to fraction form
    28,103,198.25/38,770,538.02 = 18,813,761.24/x
  3. Step 3: Cross multiply
    28,103,198.25x = 38,770,538.02 × 18,813,761.24
  4. Step 4: Simplify right side
    28,103,198.25x = 729,419,645,213,735.25
  5. Step 5: Solve for x
    x = 729,419,645,213,735.25/28,103,198.25
  6. Step 6: Final answer
    x = 25,955,040.37

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1.5x scale

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.