Home / 18,507,745.68-25,540,425-10,247,015.76

Finding the Fourth Proportional to 18,507,745.68, 25,540,425 and 10,247,015.76

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Solution

The fourth proportional to 18,507,745.68, 25,540,425 and 10,247,015.76 is: 14,140,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507,745.68 : 25,540,425 = 10,247,015.76 : x
  2. Step 2: Convert to fraction form
    18,507,745.68/25,540,425 = 10,247,015.76/x
  3. Step 3: Cross multiply
    18,507,745.68x = 25,540,425 × 10,247,015.76
  4. Step 4: Simplify right side
    18,507,745.68x = 261,713,137,492,098
  5. Step 5: Solve for x
    x = 261,713,137,492,098/18,507,745.68
  6. Step 6: Final answer
    x = 14,140,735.56

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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.