Home / 20,919,477.88-31,361,242.72-7,270,850.68

Finding the Fourth Proportional to 20,919,477.88, 31,361,242.72 and 7,270,850.68

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Solution

The fourth proportional to 20,919,477.88, 31,361,242.72 and 7,270,850.68 is: 10,900,028.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,477.88 : 31,361,242.72 = 7,270,850.68 : x
  2. Step 2: Convert to fraction form
    20,919,477.88/31,361,242.72 = 7,270,850.68/x
  3. Step 3: Cross multiply
    20,919,477.88x = 31,361,242.72 × 7,270,850.68
  4. Step 4: Simplify right side
    20,919,477.88x = 228,022,912,956,357.03
  5. Step 5: Solve for x
    x = 228,022,912,956,357.03/20,919,477.88
  6. Step 6: Final answer
    x = 10,900,028.88

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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.