Home / 57,021,777.48-85,541,201.80-20,638,680.38

Finding the Fourth Proportional to 57,021,777.48, 85,541,201.80 and 20,638,680.38

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Solution

The fourth proportional to 57,021,777.48, 85,541,201.80 and 20,638,680.38 is: 30,961,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021,777.48 : 85,541,201.80 = 20,638,680.38 : x
  2. Step 2: Convert to fraction form
    57,021,777.48/85,541,201.80 = 20,638,680.38/x
  3. Step 3: Cross multiply
    57,021,777.48x = 85,541,201.80 × 20,638,680.38
  4. Step 4: Simplify right side
    57,021,777.48x = 1,765,457,523,271,280.50
  5. Step 5: Solve for x
    x = 1,765,457,523,271,280.50/57,021,777.48
  6. Step 6: Final answer
    x = 30,961,109.97

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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.