Home / 132,858,218.40-199,318,820.40-68,172,007.20

Finding the Fourth Proportional to 132,858,218.40, 199,318,820.40 and 68,172,007.20

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Solution

The fourth proportional to 132,858,218.40, 199,318,820.40 and 68,172,007.20 is: 102,274,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,858,218.40 : 199,318,820.40 = 68,172,007.20 : x
  2. Step 2: Convert to fraction form
    132,858,218.40/199,318,820.40 = 68,172,007.20/x
  3. Step 3: Cross multiply
    132,858,218.40x = 199,318,820.40 × 68,172,007.20
  4. Step 4: Simplify right side
    132,858,218.40x = 13,587,964,059,404,308
  5. Step 5: Solve for x
    x = 13,587,964,059,404,308/132,858,218.40
  6. Step 6: Final answer
    x = 102,274,170.34

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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.