Home / 21,012,179.94-28,997,251.22-11,844,822.68

Finding the Fourth Proportional to 21,012,179.94, 28,997,251.22 and 11,844,822.68

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Solution

The fourth proportional to 21,012,179.94, 28,997,251.22 and 11,844,822.68 is: 16,346,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,012,179.94 : 28,997,251.22 = 11,844,822.68 : x
  2. Step 2: Convert to fraction form
    21,012,179.94/28,997,251.22 = 11,844,822.68/x
  3. Step 3: Cross multiply
    21,012,179.94x = 28,997,251.22 × 11,844,822.68
  4. Step 4: Simplify right side
    21,012,179.94x = 343,467,298,908,313.62
  5. Step 5: Solve for x
    x = 343,467,298,908,313.62/21,012,179.94
  6. Step 6: Final answer
    x = 16,346,104.97

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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.