Home / 7,202,934.85-9,939,977.76-3,939,813.30

Finding the Fourth Proportional to 7,202,934.85, 9,939,977.76 and 3,939,813.30

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Solution

The fourth proportional to 7,202,934.85, 9,939,977.76 and 3,939,813.30 is: 5,436,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202,934.85 : 9,939,977.76 = 3,939,813.30 : x
  2. Step 2: Convert to fraction form
    7,202,934.85/9,939,977.76 = 3,939,813.30/x
  3. Step 3: Cross multiply
    7,202,934.85x = 9,939,977.76 × 3,939,813.30
  4. Step 4: Simplify right side
    7,202,934.85x = 39,161,656,560,853.14
  5. Step 5: Solve for x
    x = 39,161,656,560,853.14/7,202,934.85
  6. Step 6: Final answer
    x = 5,436,902.79

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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.