Home / 125,964,806.40-188,828,323.20-68,372,179.20

Finding the Fourth Proportional to 125,964,806.40, 188,828,323.20 and 68,372,179.20

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Solution

The fourth proportional to 125,964,806.40, 188,828,323.20 and 68,372,179.20 is: 102,493,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,964,806.40 : 188,828,323.20 = 68,372,179.20 : x
  2. Step 2: Convert to fraction form
    125,964,806.40/188,828,323.20 = 68,372,179.20/x
  3. Step 3: Cross multiply
    125,964,806.40x = 188,828,323.20 × 68,372,179.20
  4. Step 4: Simplify right side
    125,964,806.40x = 12,910,603,951,865,918
  5. Step 5: Solve for x
    x = 12,910,603,951,865,918/125,964,806.40
  6. Step 6: Final answer
    x = 102,493,738.69

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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.