Home / 20,321,810.14-28,067,373.12-13,383,503.50

Finding the Fourth Proportional to 20,321,810.14, 28,067,373.12 and 13,383,503.50

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Solution

The fourth proportional to 20,321,810.14, 28,067,373.12 and 13,383,503.50 is: 18,484,563.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,810.14 : 28,067,373.12 = 13,383,503.50 : x
  2. Step 2: Convert to fraction form
    20,321,810.14/28,067,373.12 = 13,383,503.50/x
  3. Step 3: Cross multiply
    20,321,810.14x = 28,067,373.12 × 13,383,503.50
  4. Step 4: Simplify right side
    20,321,810.14x = 375,639,786,387,325.94
  5. Step 5: Solve for x
    x = 375,639,786,387,325.94/20,321,810.14
  6. Step 6: Final answer
    x = 18,484,563.32

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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.