Home / 20,318,983.42-28,040,215.25-11,026,553.58

Finding the Fourth Proportional to 20,318,983.42, 28,040,215.25 and 11,026,553.58

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Solution

The fourth proportional to 20,318,983.42, 28,040,215.25 and 11,026,553.58 is: 15,216,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,318,983.42 : 28,040,215.25 = 11,026,553.58 : x
  2. Step 2: Convert to fraction form
    20,318,983.42/28,040,215.25 = 11,026,553.58/x
  3. Step 3: Cross multiply
    20,318,983.42x = 28,040,215.25 × 11,026,553.58
  4. Step 4: Simplify right side
    20,318,983.42x = 309,186,935,848,858.12
  5. Step 5: Solve for x
    x = 309,186,935,848,858.12/20,318,983.42
  6. Step 6: Final answer
    x = 15,216,653.78

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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.