Home / 13,270,387.20-19,867,395.72-11,885,666.28

Finding the Fourth Proportional to 13,270,387.20, 19,867,395.72 and 11,885,666.28

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Solution

The fourth proportional to 13,270,387.20, 19,867,395.72 and 11,885,666.28 is: 17,794,298.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270,387.20 : 19,867,395.72 = 11,885,666.28 : x
  2. Step 2: Convert to fraction form
    13,270,387.20/19,867,395.72 = 11,885,666.28/x
  3. Step 3: Cross multiply
    13,270,387.20x = 19,867,395.72 × 11,885,666.28
  4. Step 4: Simplify right side
    13,270,387.20x = 236,137,235,380,620.28
  5. Step 5: Solve for x
    x = 236,137,235,380,620.28/13,270,387.20
  6. Step 6: Final answer
    x = 17,794,298.83

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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.