Home / 20,936,005.20-31,404,007.80-19,424,350.80

Finding the Fourth Proportional to 20,936,005.20, 31,404,007.80 and 19,424,350.80

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Solution

The fourth proportional to 20,936,005.20, 31,404,007.80 and 19,424,350.80 is: 29,136,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936,005.20 : 31,404,007.80 = 19,424,350.80 : x
  2. Step 2: Convert to fraction form
    20,936,005.20/31,404,007.80 = 19,424,350.80/x
  3. Step 3: Cross multiply
    20,936,005.20x = 31,404,007.80 × 19,424,350.80
  4. Step 4: Simplify right side
    20,936,005.20x = 610,002,464,033,136.25
  5. Step 5: Solve for x
    x = 610,002,464,033,136.25/20,936,005.20
  6. Step 6: Final answer
    x = 29,136,526.20

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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.