Home / 132,858,091.40-199,318,629.90-68,171,880.20

Finding the Fourth Proportional to 132,858,091.40, 199,318,629.90 and 68,171,880.20

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Solution

The fourth proportional to 132,858,091.40, 199,318,629.90 and 68,171,880.20 is: 102,273,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858,091.40 : 199,318,629.90 = 68,171,880.20 : x
  2. Step 2: Convert to fraction form
    132,858,091.40/199,318,629.90 = 68,171,880.20/x
  3. Step 3: Cross multiply
    132,858,091.40x = 199,318,629.90 × 68,171,880.20
  4. Step 4: Simplify right side
    132,858,091.40x = 13,587,925,759,170,938
  5. Step 5: Solve for x
    x = 13,587,925,759,170,938/132,858,091.40
  6. Step 6: Final answer
    x = 102,273,979.82

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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.