Home / 20,846,121.80-31,273,362.09-7,199,768.70

Finding the Fourth Proportional to 20,846,121.80, 31,273,362.09 and 7,199,768.70

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Solution

The fourth proportional to 20,846,121.80, 31,273,362.09 and 7,199,768.70 is: 10,801,096.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846,121.80 : 31,273,362.09 = 7,199,768.70 : x
  2. Step 2: Convert to fraction form
    20,846,121.80/31,273,362.09 = 7,199,768.70/x
  3. Step 3: Cross multiply
    20,846,121.80x = 31,273,362.09 × 7,199,768.70
  4. Step 4: Simplify right side
    20,846,121.80x = 225,160,973,519,348.59
  5. Step 5: Solve for x
    x = 225,160,973,519,348.59/20,846,121.80
  6. Step 6: Final answer
    x = 10,801,096.52

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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.