Home / 13,449,619.10-20,174,428.65-11,853,983.90

Finding the Fourth Proportional to 13,449,619.10, 20,174,428.65 and 11,853,983.90

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Solution

The fourth proportional to 13,449,619.10, 20,174,428.65 and 11,853,983.90 is: 17,780,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449,619.10 : 20,174,428.65 = 11,853,983.90 : x
  2. Step 2: Convert to fraction form
    13,449,619.10/20,174,428.65 = 11,853,983.90/x
  3. Step 3: Cross multiply
    13,449,619.10x = 20,174,428.65 × 11,853,983.90
  4. Step 4: Simplify right side
    13,449,619.10x = 239,147,352,408,798.72
  5. Step 5: Solve for x
    x = 239,147,352,408,798.72/13,449,619.10
  6. Step 6: Final answer
    x = 17,780,975.85

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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.