Home / 13,752,619.40-18,979,126.96-8,246,890.64

Finding the Fourth Proportional to 13,752,619.40, 18,979,126.96 and 8,246,890.64

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Solution

The fourth proportional to 13,752,619.40, 18,979,126.96 and 8,246,890.64 is: 11,381,016.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752,619.40 : 18,979,126.96 = 8,246,890.64 : x
  2. Step 2: Convert to fraction form
    13,752,619.40/18,979,126.96 = 8,246,890.64/x
  3. Step 3: Cross multiply
    13,752,619.40x = 18,979,126.96 × 8,246,890.64
  4. Step 4: Simplify right side
    13,752,619.40x = 156,518,784,481,795.66
  5. Step 5: Solve for x
    x = 156,518,784,481,795.66/13,752,619.40
  6. Step 6: Final answer
    x = 11,381,016.22

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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.