Home / 21,960,171.73-30,305,039.85-12,171,247.89

Finding the Fourth Proportional to 21,960,171.73, 30,305,039.85 and 12,171,247.89

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Solution

The fourth proportional to 21,960,171.73, 30,305,039.85 and 12,171,247.89 is: 16,796,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960,171.73 : 30,305,039.85 = 12,171,247.89 : x
  2. Step 2: Convert to fraction form
    21,960,171.73/30,305,039.85 = 12,171,247.89/x
  3. Step 3: Cross multiply
    21,960,171.73x = 30,305,039.85 × 12,171,247.89
  4. Step 4: Simplify right side
    21,960,171.73x = 368,850,152,330,678.44
  5. Step 5: Solve for x
    x = 368,850,152,330,678.44/21,960,171.73
  6. Step 6: Final answer
    x = 16,796,323.68

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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.