Home / 100,900,789.38-139,243,084.02-54,491,038.83

Finding the Fourth Proportional to 100,900,789.38, 139,243,084.02 and 54,491,038.83

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Solution

The fourth proportional to 100,900,789.38, 139,243,084.02 and 54,491,038.83 is: 75,197,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,900,789.38 : 139,243,084.02 = 54,491,038.83 : x
  2. Step 2: Convert to fraction form
    100,900,789.38/139,243,084.02 = 54,491,038.83/x
  3. Step 3: Cross multiply
    100,900,789.38x = 139,243,084.02 × 54,491,038.83
  4. Step 4: Simplify right side
    100,900,789.38x = 7,587,500,298,664,935
  5. Step 5: Solve for x
    x = 7,587,500,298,664,935/100,900,789.38
  6. Step 6: Final answer
    x = 75,197,630.71

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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.