Home / 57,021,773.97-85,541,196.56-20,638,676.87

Finding the Fourth Proportional to 57,021,773.97, 85,541,196.56 and 20,638,676.87

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Solution

The fourth proportional to 57,021,773.97, 85,541,196.56 and 20,638,676.87 is: 30,961,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021,773.97 : 85,541,196.56 = 20,638,676.87 : x
  2. Step 2: Convert to fraction form
    57,021,773.97/85,541,196.56 = 20,638,676.87/x
  3. Step 3: Cross multiply
    57,021,773.97x = 85,541,196.56 × 20,638,676.87
  4. Step 4: Simplify right side
    57,021,773.97x = 1,765,457,114,874,995.75
  5. Step 5: Solve for x
    x = 1,765,457,114,874,995.75/57,021,773.97
  6. Step 6: Final answer
    x = 30,961,104.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.