Home / 39,955,957.83-55,139,367.11-21,621,243.33

Finding the Fourth Proportional to 39,955,957.83, 55,139,367.11 and 21,621,243.33

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Solution

The fourth proportional to 39,955,957.83, 55,139,367.11 and 21,621,243.33 is: 29,837,394.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,955,957.83 : 55,139,367.11 = 21,621,243.33 : x
  2. Step 2: Convert to fraction form
    39,955,957.83/55,139,367.11 = 21,621,243.33/x
  3. Step 3: Cross multiply
    39,955,957.83x = 55,139,367.11 × 21,621,243.33
  4. Step 4: Simplify right side
    39,955,957.83x = 1,192,181,673,347,508.75
  5. Step 5: Solve for x
    x = 1,192,181,673,347,508.75/39,955,957.83
  6. Step 6: Final answer
    x = 29,837,394.42

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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.