Home / 20,397,839.20-30,596,758.80-19,201,112.80

Finding the Fourth Proportional to 20,397,839.20, 30,596,758.80 and 19,201,112.80

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Solution

The fourth proportional to 20,397,839.20, 30,596,758.80 and 19,201,112.80 is: 28,801,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397,839.20 : 30,596,758.80 = 19,201,112.80 : x
  2. Step 2: Convert to fraction form
    20,397,839.20/30,596,758.80 = 19,201,112.80/x
  3. Step 3: Cross multiply
    20,397,839.20x = 30,596,758.80 × 19,201,112.80
  4. Step 4: Simplify right side
    20,397,839.20x = 587,491,817,033,192.62
  5. Step 5: Solve for x
    x = 587,491,817,033,192.62/20,397,839.20
  6. Step 6: Final answer
    x = 28,801,669.20

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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.