Home / 20,255,747.87-30,384,973.70-7,123,589.73

Finding the Fourth Proportional to 20,255,747.87, 30,384,973.70 and 7,123,589.73

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Solution

The fourth proportional to 20,255,747.87, 30,384,973.70 and 7,123,589.73 is: 10,685,860.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255,747.87 : 30,384,973.70 = 7,123,589.73 : x
  2. Step 2: Convert to fraction form
    20,255,747.87/30,384,973.70 = 7,123,589.73/x
  3. Step 3: Cross multiply
    20,255,747.87x = 30,384,973.70 × 7,123,589.73
  4. Step 4: Simplify right side
    20,255,747.87x = 216,450,086,560,022.16
  5. Step 5: Solve for x
    x = 216,450,086,560,022.16/20,255,747.87
  6. Step 6: Final answer
    x = 10,685,860.03

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1.5x scale

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.