Home / 979,280,161.92-1,469,114,086.08-279,778,249.60

Finding the Fourth Proportional to 979,280,161.92, 1,469,114,086.08 and 279,778,249.60

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Solution

The fourth proportional to 979,280,161.92, 1,469,114,086.08 and 279,778,249.60 is: 419,722,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,280,161.92 : 1,469,114,086.08 = 279,778,249.60 : x
  2. Step 2: Convert to fraction form
    979,280,161.92/1,469,114,086.08 = 279,778,249.60/x
  3. Step 3: Cross multiply
    979,280,161.92x = 1,469,114,086.08 × 279,778,249.60
  4. Step 4: Simplify right side
    979,280,161.92x = 411,026,167,466,166,144
  5. Step 5: Solve for x
    x = 411,026,167,466,166,144/979,280,161.92
  6. Step 6: Final answer
    x = 419,722,754.99

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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.