Home / 13,431,758.04-20,147,449.44-7,662,178.67

Finding the Fourth Proportional to 13,431,758.04, 20,147,449.44 and 7,662,178.67

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Solution

The fourth proportional to 13,431,758.04, 20,147,449.44 and 7,662,178.67 is: 11,493,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,758.04 : 20,147,449.44 = 7,662,178.67 : x
  2. Step 2: Convert to fraction form
    13,431,758.04/20,147,449.44 = 7,662,178.67/x
  3. Step 3: Cross multiply
    13,431,758.04x = 20,147,449.44 × 7,662,178.67
  4. Step 4: Simplify right side
    13,431,758.04x = 154,373,357,282,067.38
  5. Step 5: Solve for x
    x = 154,373,357,282,067.38/13,431,758.04
  6. Step 6: Final answer
    x = 11,493,160.97

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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.