Home / 13,498,865.87-18,628,422.86-7,619,737.57

Finding the Fourth Proportional to 13,498,865.87, 18,628,422.86 and 7,619,737.57

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Solution

The fourth proportional to 13,498,865.87, 18,628,422.86 and 7,619,737.57 is: 10,515,231.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,498,865.87 : 18,628,422.86 = 7,619,737.57 : x
  2. Step 2: Convert to fraction form
    13,498,865.87/18,628,422.86 = 7,619,737.57/x
  3. Step 3: Cross multiply
    13,498,865.87x = 18,628,422.86 × 7,619,737.57
  4. Step 4: Simplify right side
    13,498,865.87x = 141,943,693,508,667.12
  5. Step 5: Solve for x
    x = 141,943,693,508,667.12/13,498,865.87
  6. Step 6: Final answer
    x = 10,515,231.05

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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.