Home / 13,279,426.25-18,326,546.70-7,399,450.76

Finding the Fourth Proportional to 13,279,426.25, 18,326,546.70 and 7,399,450.76

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Solution

The fourth proportional to 13,279,426.25, 18,326,546.70 and 7,399,450.76 is: 10,211,764.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279,426.25 : 18,326,546.70 = 7,399,450.76 : x
  2. Step 2: Convert to fraction form
    13,279,426.25/18,326,546.70 = 7,399,450.76/x
  3. Step 3: Cross multiply
    13,279,426.25x = 18,326,546.70 × 7,399,450.76
  4. Step 4: Simplify right side
    13,279,426.25x = 135,606,379,815,857.75
  5. Step 5: Solve for x
    x = 135,606,379,815,857.75/13,279,426.25
  6. Step 6: Final answer
    x = 10,211,764.97

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1.5x scale

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.