Home / 20,745,891.98-28,642,251.36-13,206,270.34

Finding the Fourth Proportional to 20,745,891.98, 28,642,251.36 and 13,206,270.34

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Solution

The fourth proportional to 20,745,891.98, 28,642,251.36 and 13,206,270.34 is: 18,232,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745,891.98 : 28,642,251.36 = 13,206,270.34 : x
  2. Step 2: Convert to fraction form
    20,745,891.98/28,642,251.36 = 13,206,270.34/x
  3. Step 3: Cross multiply
    20,745,891.98x = 28,642,251.36 × 13,206,270.34
  4. Step 4: Simplify right side
    20,745,891.98x = 378,257,314,606,392.62
  5. Step 5: Solve for x
    x = 378,257,314,606,392.62/20,745,891.98
  6. Step 6: Final answer
    x = 18,232,877.86

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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.