Home / 13,479,821.40-20,219,732.10-3,895,512.60

Finding the Fourth Proportional to 13,479,821.40, 20,219,732.10 and 3,895,512.60

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Solution

The fourth proportional to 13,479,821.40, 20,219,732.10 and 3,895,512.60 is: 5,843,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,821.40 : 20,219,732.10 = 3,895,512.60 : x
  2. Step 2: Convert to fraction form
    13,479,821.40/20,219,732.10 = 3,895,512.60/x
  3. Step 3: Cross multiply
    13,479,821.40x = 20,219,732.10 × 3,895,512.60
  4. Step 4: Simplify right side
    13,479,821.40x = 78,766,221,164,174.47
  5. Step 5: Solve for x
    x = 78,766,221,164,174.47/13,479,821.40
  6. Step 6: Final answer
    x = 5,843,268.90

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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.