Home / 998,783,999.40-1,498,175,999.10-636,882,738.60

Finding the Fourth Proportional to 998,783,999.40, 1,498,175,999.10 and 636,882,738.60

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Solution

The fourth proportional to 998,783,999.40, 1,498,175,999.10 and 636,882,738.60 is: 955,324,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,783,999.40 : 1,498,175,999.10 = 636,882,738.60 : x
  2. Step 2: Convert to fraction form
    998,783,999.40/1,498,175,999.10 = 636,882,738.60/x
  3. Step 3: Cross multiply
    998,783,999.40x = 1,498,175,999.10 × 636,882,738.60
  4. Step 4: Simplify right side
    998,783,999.40x = 954,162,433,211,599,104
  5. Step 5: Solve for x
    x = 954,162,433,211,599,104/998,783,999.40
  6. Step 6: Final answer
    x = 955,324,107.90

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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.