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Finding the Fourth Proportional to 8,017,268.40, 12,018,029.40 and 3,974,380.20

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Solution

The fourth proportional to 8,017,268.40, 12,018,029.40 and 3,974,380.20 is: 5,957,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,017,268.40 : 12,018,029.40 = 3,974,380.20 : x
  2. Step 2: Convert to fraction form
    8,017,268.40/12,018,029.40 = 3,974,380.20/x
  3. Step 3: Cross multiply
    8,017,268.40x = 12,018,029.40 × 3,974,380.20
  4. Step 4: Simplify right side
    8,017,268.40x = 47,764,218,090,377.88
  5. Step 5: Solve for x
    x = 47,764,218,090,377.88/8,017,268.40
  6. Step 6: Final answer
    x = 5,957,667.34

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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.