Home / 57,021,777.98-85,541,202.55-20,638,680.88

Finding the Fourth Proportional to 57,021,777.98, 85,541,202.55 and 20,638,680.88

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Solution

The fourth proportional to 57,021,777.98, 85,541,202.55 and 20,638,680.88 is: 30,961,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021,777.98 : 85,541,202.55 = 20,638,680.88 : x
  2. Step 2: Convert to fraction form
    57,021,777.98/85,541,202.55 = 20,638,680.88/x
  3. Step 3: Cross multiply
    57,021,777.98x = 85,541,202.55 × 20,638,680.88
  4. Step 4: Simplify right side
    57,021,777.98x = 1,765,457,581,520,892
  5. Step 5: Solve for x
    x = 1,765,457,581,520,892/57,021,777.98
  6. Step 6: Final answer
    x = 30,961,110.72

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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.