Home / 20,125,067.70-30,187,601.55-13,747,775.70

Finding the Fourth Proportional to 20,125,067.70, 30,187,601.55 and 13,747,775.70

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Solution

The fourth proportional to 20,125,067.70, 30,187,601.55 and 13,747,775.70 is: 20,621,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125,067.70 : 30,187,601.55 = 13,747,775.70 : x
  2. Step 2: Convert to fraction form
    20,125,067.70/30,187,601.55 = 13,747,775.70/x
  3. Step 3: Cross multiply
    20,125,067.70x = 30,187,601.55 × 13,747,775.70
  4. Step 4: Simplify right side
    20,125,067.70x = 415,012,375,030,372.31
  5. Step 5: Solve for x
    x = 415,012,375,030,372.31/20,125,067.70
  6. Step 6: Final answer
    x = 20,621,663.55

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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.