Home / 20,321,803.14-28,067,363.46-13,383,496.50

Finding the Fourth Proportional to 20,321,803.14, 28,067,363.46 and 13,383,496.50

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Solution

The fourth proportional to 20,321,803.14, 28,067,363.46 and 13,383,496.50 is: 18,484,553.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,803.14 : 28,067,363.46 = 13,383,496.50 : x
  2. Step 2: Convert to fraction form
    20,321,803.14/28,067,363.46 = 13,383,496.50/x
  3. Step 3: Cross multiply
    20,321,803.14x = 28,067,363.46 × 13,383,496.50
  4. Step 4: Simplify right side
    20,321,803.14x = 375,639,460,631,137.88
  5. Step 5: Solve for x
    x = 375,639,460,631,137.88/20,321,803.14
  6. Step 6: Final answer
    x = 18,484,553.66

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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.