Home / 20,972,218.16-28,942,558.98-11,679,788.17

Finding the Fourth Proportional to 20,972,218.16, 28,942,558.98 and 11,679,788.17

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Solution

The fourth proportional to 20,972,218.16, 28,942,558.98 and 11,679,788.17 is: 16,118,607.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,972,218.16 : 28,942,558.98 = 11,679,788.17 : x
  2. Step 2: Convert to fraction form
    20,972,218.16/28,942,558.98 = 11,679,788.17/x
  3. Step 3: Cross multiply
    20,972,218.16x = 28,942,558.98 × 11,679,788.17
  4. Step 4: Simplify right side
    20,972,218.16x = 338,042,957,839,418.44
  5. Step 5: Solve for x
    x = 338,042,957,839,418.44/20,972,218.16
  6. Step 6: Final answer
    x = 16,118,607.73

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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.