Home / 72,652,961.19-108,979,835.49-18,800,273.19

Finding the Fourth Proportional to 72,652,961.19, 108,979,835.49 and 18,800,273.19

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Solution

The fourth proportional to 72,652,961.19, 108,979,835.49 and 18,800,273.19 is: 28,200,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,652,961.19 : 108,979,835.49 = 18,800,273.19 : x
  2. Step 2: Convert to fraction form
    72,652,961.19/108,979,835.49 = 18,800,273.19/x
  3. Step 3: Cross multiply
    72,652,961.19x = 108,979,835.49 × 18,800,273.19
  4. Step 4: Simplify right side
    72,652,961.19x = 2,048,850,679,413,257.50
  5. Step 5: Solve for x
    x = 2,048,850,679,413,257.50/72,652,961.19
  6. Step 6: Final answer
    x = 28,200,511.66

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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.