Home / 40,025,857.37-55,235,730.39-21,691,142.87

Finding the Fourth Proportional to 40,025,857.37, 55,235,730.39 and 21,691,142.87

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Solution

The fourth proportional to 40,025,857.37, 55,235,730.39 and 21,691,142.87 is: 29,933,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025,857.37 : 55,235,730.39 = 21,691,142.87 : x
  2. Step 2: Convert to fraction form
    40,025,857.37/55,235,730.39 = 21,691,142.87/x
  3. Step 3: Cross multiply
    40,025,857.37x = 55,235,730.39 × 21,691,142.87
  4. Step 4: Simplify right side
    40,025,857.37x = 1,198,126,119,418,291
  5. Step 5: Solve for x
    x = 1,198,126,119,418,291/40,025,857.37
  6. Step 6: Final answer
    x = 29,933,802.75

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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.