Home / 90,395,644.64-135,610,919.21-38,579,491.04

Finding the Fourth Proportional to 90,395,644.64, 135,610,919.21 and 38,579,491.04

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Solution

The fourth proportional to 90,395,644.64, 135,610,919.21 and 38,579,491.04 is: 57,876,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,395,644.64 : 135,610,919.21 = 38,579,491.04 : x
  2. Step 2: Convert to fraction form
    90,395,644.64/135,610,919.21 = 38,579,491.04/x
  3. Step 3: Cross multiply
    90,395,644.64x = 135,610,919.21 × 38,579,491.04
  4. Step 4: Simplify right side
    90,395,644.64x = 5,231,800,242,006,753
  5. Step 5: Solve for x
    x = 5,231,800,242,006,753/90,395,644.64
  6. Step 6: Final answer
    x = 57,876,684.91

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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.