Home / 20,078,958.62-30,121,119.06-7,945,584.53

Finding the Fourth Proportional to 20,078,958.62, 30,121,119.06 and 7,945,584.53

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Solution

The fourth proportional to 20,078,958.62, 30,121,119.06 and 7,945,584.53 is: 11,919,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078,958.62 : 30,121,119.06 = 7,945,584.53 : x
  2. Step 2: Convert to fraction form
    20,078,958.62/30,121,119.06 = 7,945,584.53/x
  3. Step 3: Cross multiply
    20,078,958.62x = 30,121,119.06 × 7,945,584.53
  4. Step 4: Simplify right side
    20,078,958.62x = 239,329,897,478,818.56
  5. Step 5: Solve for x
    x = 239,329,897,478,818.56/20,078,958.62
  6. Step 6: Final answer
    x = 11,919,437.76

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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.