Home / 57,091,144.37-78,785,857.02-30,985,662.56

Finding the Fourth Proportional to 57,091,144.37, 78,785,857.02 and 30,985,662.56

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Solution

The fourth proportional to 57,091,144.37, 78,785,857.02 and 30,985,662.56 is: 42,760,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,091,144.37 : 78,785,857.02 = 30,985,662.56 : x
  2. Step 2: Convert to fraction form
    57,091,144.37/78,785,857.02 = 30,985,662.56/x
  3. Step 3: Cross multiply
    57,091,144.37x = 78,785,857.02 × 30,985,662.56
  4. Step 4: Simplify right side
    57,091,144.37x = 2,441,231,979,728,197.50
  5. Step 5: Solve for x
    x = 2,441,231,979,728,197.50/57,091,144.37
  6. Step 6: Final answer
    x = 42,760,256.55

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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.