Home / 40,098,731.78-55,336,290.81-21,764,021.06

Finding the Fourth Proportional to 40,098,731.78, 55,336,290.81 and 21,764,021.06

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Solution

The fourth proportional to 40,098,731.78, 55,336,290.81 and 21,764,021.06 is: 30,034,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,098,731.78 : 55,336,290.81 = 21,764,021.06 : x
  2. Step 2: Convert to fraction form
    40,098,731.78/55,336,290.81 = 21,764,021.06/x
  3. Step 3: Cross multiply
    40,098,731.78x = 55,336,290.81 × 21,764,021.06
  4. Step 4: Simplify right side
    40,098,731.78x = 1,204,340,198,571,124.50
  5. Step 5: Solve for x
    x = 1,204,340,198,571,124.50/40,098,731.78
  6. Step 6: Final answer
    x = 30,034,371.29

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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.