Home / 20,808,002.55-31,212,003.83-15,101,455.35

Finding the Fourth Proportional to 20,808,002.55, 31,212,003.83 and 15,101,455.35

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Solution

The fourth proportional to 20,808,002.55, 31,212,003.83 and 15,101,455.35 is: 22,652,183.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,002.55 : 31,212,003.83 = 15,101,455.35 : x
  2. Step 2: Convert to fraction form
    20,808,002.55/31,212,003.83 = 15,101,455.35/x
  3. Step 3: Cross multiply
    20,808,002.55x = 31,212,003.83 × 15,101,455.35
  4. Step 4: Simplify right side
    20,808,002.55x = 471,346,682,147,266.69
  5. Step 5: Solve for x
    x = 471,346,682,147,266.69/20,808,002.55
  6. Step 6: Final answer
    x = 22,652,183.03

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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.