Home / 13,770,790.87-20,655,438.79-4,185,422.06

Finding the Fourth Proportional to 13,770,790.87, 20,655,438.79 and 4,185,422.06

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Solution

The fourth proportional to 13,770,790.87, 20,655,438.79 and 4,185,422.06 is: 6,277,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770,790.87 : 20,655,438.79 = 4,185,422.06 : x
  2. Step 2: Convert to fraction form
    13,770,790.87/20,655,438.79 = 4,185,422.06/x
  3. Step 3: Cross multiply
    13,770,790.87x = 20,655,438.79 × 4,185,422.06
  4. Step 4: Simplify right side
    13,770,790.87x = 86,451,729,170,645.70
  5. Step 5: Solve for x
    x = 86,451,729,170,645.70/13,770,790.87
  6. Step 6: Final answer
    x = 6,277,905.89

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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.