Home / 20,378,363.50-28,122,324.47-11,086,136.44

Finding the Fourth Proportional to 20,378,363.50, 28,122,324.47 and 11,086,136.44

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Solution

The fourth proportional to 20,378,363.50, 28,122,324.47 and 11,086,136.44 is: 15,298,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378,363.50 : 28,122,324.47 = 11,086,136.44 : x
  2. Step 2: Convert to fraction form
    20,378,363.50/28,122,324.47 = 11,086,136.44/x
  3. Step 3: Cross multiply
    20,378,363.50x = 28,122,324.47 × 11,086,136.44
  4. Step 4: Simplify right side
    20,378,363.50x = 311,767,926,028,940
  5. Step 5: Solve for x
    x = 311,767,926,028,940/20,378,363.50
  6. Step 6: Final answer
    x = 15,298,967.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.