Home / 81,435,493.53-122,152,174.13-20,025,182.34

Finding the Fourth Proportional to 81,435,493.53, 122,152,174.13 and 20,025,182.34

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Solution

The fourth proportional to 81,435,493.53, 122,152,174.13 and 20,025,182.34 is: 30,037,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,435,493.53 : 122,152,174.13 = 20,025,182.34 : x
  2. Step 2: Convert to fraction form
    81,435,493.53/122,152,174.13 = 20,025,182.34/x
  3. Step 3: Cross multiply
    81,435,493.53x = 122,152,174.13 × 20,025,182.34
  4. Step 4: Simplify right side
    81,435,493.53x = 2,446,119,560,230,743.50
  5. Step 5: Solve for x
    x = 2,446,119,560,230,743.50/81,435,493.53
  6. Step 6: Final answer
    x = 30,037,511.34

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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.