Home / 280,315,610.46-386,823,834.84-161,229,148.44

Finding the Fourth Proportional to 280,315,610.46, 386,823,834.84 and 161,229,148.44

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Solution

The fourth proportional to 280,315,610.46, 386,823,834.84 and 161,229,148.44 is: 222,489,490.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,315,610.46 : 386,823,834.84 = 161,229,148.44 : x
  2. Step 2: Convert to fraction form
    280,315,610.46/386,823,834.84 = 161,229,148.44/x
  3. Step 3: Cross multiply
    280,315,610.46x = 386,823,834.84 × 161,229,148.44
  4. Step 4: Simplify right side
    280,315,610.46x = 62,367,277,487,548,400
  5. Step 5: Solve for x
    x = 62,367,277,487,548,400/280,315,610.46
  6. Step 6: Final answer
    x = 222,489,490.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.