Home / 7,257,780.72-10,886,906.84-2,139,781.44

Finding the Fourth Proportional to 7,257,780.72, 10,886,906.84 and 2,139,781.44

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Solution

The fourth proportional to 7,257,780.72, 10,886,906.84 and 2,139,781.44 is: 3,209,741.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257,780.72 : 10,886,906.84 = 2,139,781.44 : x
  2. Step 2: Convert to fraction form
    7,257,780.72/10,886,906.84 = 2,139,781.44/x
  3. Step 3: Cross multiply
    7,257,780.72x = 10,886,906.84 × 2,139,781.44
  4. Step 4: Simplify right side
    7,257,780.72x = 23,295,601,195,241.05
  5. Step 5: Solve for x
    x = 23,295,601,195,241.05/7,257,780.72
  6. Step 6: Final answer
    x = 3,209,741.67

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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.