Home / 13,319,288.22-18,380,617.56-7,207,716.72

Finding the Fourth Proportional to 13,319,288.22, 18,380,617.56 and 7,207,716.72

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Solution

The fourth proportional to 13,319,288.22, 18,380,617.56 and 7,207,716.72 is: 9,946,648.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319,288.22 : 18,380,617.56 = 7,207,716.72 : x
  2. Step 2: Convert to fraction form
    13,319,288.22/18,380,617.56 = 7,207,716.72/x
  3. Step 3: Cross multiply
    13,319,288.22x = 18,380,617.56 × 7,207,716.72
  4. Step 4: Simplify right side
    13,319,288.22x = 132,482,284,511,137.59
  5. Step 5: Solve for x
    x = 132,482,284,511,137.59/13,319,288.22
  6. Step 6: Final answer
    x = 9,946,648.97

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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.