Home / 20,950,976.53-28,914,864.57-12,690,796.44

Finding the Fourth Proportional to 20,950,976.53, 28,914,864.57 and 12,690,796.44

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Solution

The fourth proportional to 20,950,976.53, 28,914,864.57 and 12,690,796.44 is: 17,514,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950,976.53 : 28,914,864.57 = 12,690,796.44 : x
  2. Step 2: Convert to fraction form
    20,950,976.53/28,914,864.57 = 12,690,796.44/x
  3. Step 3: Cross multiply
    20,950,976.53x = 28,914,864.57 × 12,690,796.44
  4. Step 4: Simplify right side
    20,950,976.53x = 366,952,660,388,598.31
  5. Step 5: Solve for x
    x = 366,952,660,388,598.31/20,950,976.53
  6. Step 6: Final answer
    x = 17,514,823.71

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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.