Home / 40,098,722.78-55,336,278.39-21,764,012.06

Finding the Fourth Proportional to 40,098,722.78, 55,336,278.39 and 21,764,012.06

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Solution

The fourth proportional to 40,098,722.78, 55,336,278.39 and 21,764,012.06 is: 30,034,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,098,722.78 : 55,336,278.39 = 21,764,012.06 : x
  2. Step 2: Convert to fraction form
    40,098,722.78/55,336,278.39 = 21,764,012.06/x
  3. Step 3: Cross multiply
    40,098,722.78x = 55,336,278.39 × 21,764,012.06
  4. Step 4: Simplify right side
    40,098,722.78x = 1,204,339,430,235,477.25
  5. Step 5: Solve for x
    x = 1,204,339,430,235,477.25/40,098,722.78
  6. Step 6: Final answer
    x = 30,034,358.87

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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.