Home / 20,811,383.11-31,219,172.16-7,162,735.76

Finding the Fourth Proportional to 20,811,383.11, 31,219,172.16 and 7,162,735.76

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Solution

The fourth proportional to 20,811,383.11, 31,219,172.16 and 7,162,735.76 is: 10,744,825.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,811,383.11 : 31,219,172.16 = 7,162,735.76 : x
  2. Step 2: Convert to fraction form
    20,811,383.11/31,219,172.16 = 7,162,735.76/x
  3. Step 3: Cross multiply
    20,811,383.11x = 31,219,172.16 × 7,162,735.76
  4. Step 4: Simplify right side
    20,811,383.11x = 223,614,680,828,028.44
  5. Step 5: Solve for x
    x = 223,614,680,828,028.44/20,811,383.11
  6. Step 6: Final answer
    x = 10,744,825.54

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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.