Home / 20,669,136.83-31,003,786.48-8,373,332.42

Finding the Fourth Proportional to 20,669,136.83, 31,003,786.48 and 8,373,332.42

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Solution

The fourth proportional to 20,669,136.83, 31,003,786.48 and 8,373,332.42 is: 12,560,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,136.83 : 31,003,786.48 = 8,373,332.42 : x
  2. Step 2: Convert to fraction form
    20,669,136.83/31,003,786.48 = 8,373,332.42/x
  3. Step 3: Cross multiply
    20,669,136.83x = 31,003,786.48 × 8,373,332.42
  4. Step 4: Simplify right side
    20,669,136.83x = 259,605,010,299,789.41
  5. Step 5: Solve for x
    x = 259,605,010,299,789.41/20,669,136.83
  6. Step 6: Final answer
    x = 12,560,031.53

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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.