Home / 20,936,036.82-31,404,016.35-6,560,205.78

Finding the Fourth Proportional to 20,936,036.82, 31,404,016.35 and 6,560,205.78

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Solution

The fourth proportional to 20,936,036.82, 31,404,016.35 and 6,560,205.78 is: 9,840,296.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,936,036.82 : 31,404,016.35 = 6,560,205.78 : x
  2. Step 2: Convert to fraction form
    20,936,036.82/31,404,016.35 = 6,560,205.78/x
  3. Step 3: Cross multiply
    20,936,036.82x = 31,404,016.35 × 6,560,205.78
  4. Step 4: Simplify right side
    20,936,036.82x = 206,016,809,574,484.53
  5. Step 5: Solve for x
    x = 206,016,809,574,484.53/20,936,036.82
  6. Step 6: Final answer
    x = 9,840,296.49

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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.