Home / 12,096,321.20-18,181,806.60-11,872,372.40

Finding the Fourth Proportional to 12,096,321.20, 18,181,806.60 and 11,872,372.40

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Solution

The fourth proportional to 12,096,321.20, 18,181,806.60 and 11,872,372.40 is: 17,845,192.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,096,321.20 : 18,181,806.60 = 11,872,372.40 : x
  2. Step 2: Convert to fraction form
    12,096,321.20/18,181,806.60 = 11,872,372.40/x
  3. Step 3: Cross multiply
    12,096,321.20x = 18,181,806.60 × 11,872,372.40
  4. Step 4: Simplify right side
    12,096,321.20x = 215,861,178,859,977.88
  5. Step 5: Solve for x
    x = 215,861,178,859,977.88/12,096,321.20
  6. Step 6: Final answer
    x = 17,845,192.38

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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.