Home / 21,259,987.04-31,882,107.24-6,879,324.80

Finding the Fourth Proportional to 21,259,987.04, 31,882,107.24 and 6,879,324.80

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Solution

The fourth proportional to 21,259,987.04, 31,882,107.24 and 6,879,324.80 is: 10,316,439.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259,987.04 : 31,882,107.24 = 6,879,324.80 : x
  2. Step 2: Convert to fraction form
    21,259,987.04/31,882,107.24 = 6,879,324.80/x
  3. Step 3: Cross multiply
    21,259,987.04x = 31,882,107.24 × 6,879,324.80
  4. Step 4: Simplify right side
    21,259,987.04x = 219,327,371,012,391.53
  5. Step 5: Solve for x
    x = 219,327,371,012,391.53/21,259,987.04
  6. Step 6: Final answer
    x = 10,316,439.54

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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.