Home / 40,098,729.28-55,336,287.36-21,764,018.56

Finding the Fourth Proportional to 40,098,729.28, 55,336,287.36 and 21,764,018.56

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Solution

The fourth proportional to 40,098,729.28, 55,336,287.36 and 21,764,018.56 is: 30,034,367.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,098,729.28 : 55,336,287.36 = 21,764,018.56 : x
  2. Step 2: Convert to fraction form
    40,098,729.28/55,336,287.36 = 21,764,018.56/x
  3. Step 3: Cross multiply
    40,098,729.28x = 55,336,287.36 × 21,764,018.56
  4. Step 4: Simplify right side
    40,098,729.28x = 1,204,339,985,144,533.25
  5. Step 5: Solve for x
    x = 1,204,339,985,144,533.25/40,098,729.28
  6. Step 6: Final answer
    x = 30,034,367.84

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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.