Home / 61,189,887.10-91,758,258.60-20,233,500.70

Finding the Fourth Proportional to 61,189,887.10, 91,758,258.60 and 20,233,500.70

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Solution

The fourth proportional to 61,189,887.10, 91,758,258.60 and 20,233,500.70 is: 30,341,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,189,887.10 : 91,758,258.60 = 20,233,500.70 : x
  2. Step 2: Convert to fraction form
    61,189,887.10/91,758,258.60 = 20,233,500.70/x
  3. Step 3: Cross multiply
    61,189,887.10x = 91,758,258.60 × 20,233,500.70
  4. Step 4: Simplify right side
    61,189,887.10x = 1,856,590,789,613,880.75
  5. Step 5: Solve for x
    x = 1,856,590,789,613,880.75/61,189,887.10
  6. Step 6: Final answer
    x = 30,341,464.54

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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.