Home / 39,457,586.81-54,449,273.37-21,815,469.41

Finding the Fourth Proportional to 39,457,586.81, 54,449,273.37 and 21,815,469.41

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Solution

The fourth proportional to 39,457,586.81, 54,449,273.37 and 21,815,469.41 is: 30,104,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,457,586.81 : 54,449,273.37 = 21,815,469.41 : x
  2. Step 2: Convert to fraction form
    39,457,586.81/54,449,273.37 = 21,815,469.41/x
  3. Step 3: Cross multiply
    39,457,586.81x = 54,449,273.37 × 21,815,469.41
  4. Step 4: Simplify right side
    39,457,586.81x = 1,187,836,457,599,962.50
  5. Step 5: Solve for x
    x = 1,187,836,457,599,962.50/39,457,586.81
  6. Step 6: Final answer
    x = 30,104,133.42

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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.