Home / 20,757,910.20-31,136,865.30-9,243,355.20

Finding the Fourth Proportional to 20,757,910.20, 31,136,865.30 and 9,243,355.20

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Solution

The fourth proportional to 20,757,910.20, 31,136,865.30 and 9,243,355.20 is: 13,865,032.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,910.20 : 31,136,865.30 = 9,243,355.20 : x
  2. Step 2: Convert to fraction form
    20,757,910.20/31,136,865.30 = 9,243,355.20/x
  3. Step 3: Cross multiply
    20,757,910.20x = 31,136,865.30 × 9,243,355.20
  4. Step 4: Simplify right side
    20,757,910.20x = 287,809,105,782,454.56
  5. Step 5: Solve for x
    x = 287,809,105,782,454.56/20,757,910.20
  6. Step 6: Final answer
    x = 13,865,032.80

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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.