Home / 979,391,998.80-1,469,087,998.20-851,846,158.80

Finding the Fourth Proportional to 979,391,998.80, 1,469,087,998.20 and 851,846,158.80

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Solution

The fourth proportional to 979,391,998.80, 1,469,087,998.20 and 851,846,158.80 is: 1,277,769,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,391,998.80 : 1,469,087,998.20 = 851,846,158.80 : x
  2. Step 2: Convert to fraction form
    979,391,998.80/1,469,087,998.20 = 851,846,158.80/x
  3. Step 3: Cross multiply
    979,391,998.80x = 1,469,087,998.20 × 851,846,158.80
  4. Step 4: Simplify right side
    979,391,998.80x = 1,251,436,968,205,851,392
  5. Step 5: Solve for x
    x = 1,251,436,968,205,851,392/979,391,998.80
  6. Step 6: Final answer
    x = 1,277,769,238.20

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Double scale
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Similar ratio
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1.5x scale

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.