Home / 30,262,791.51-41,713,866-20,469,664.31

Finding the Fourth Proportional to 30,262,791.51, 41,713,866 and 20,469,664.31

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Solution

The fourth proportional to 30,262,791.51, 41,713,866 and 20,469,664.31 is: 28,215,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,262,791.51 : 41,713,866 = 20,469,664.31 : x
  2. Step 2: Convert to fraction form
    30,262,791.51/41,713,866 = 20,469,664.31/x
  3. Step 3: Cross multiply
    30,262,791.51x = 41,713,866 × 20,469,664.31
  4. Step 4: Simplify right side
    30,262,791.51x = 853,868,833,883,753.12
  5. Step 5: Solve for x
    x = 853,868,833,883,753.12/30,262,791.51
  6. Step 6: Final answer
    x = 28,215,137.84

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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.