Home / 20,654,519.42-28,503,079.26-11,361,889.46

Finding the Fourth Proportional to 20,654,519.42, 28,503,079.26 and 11,361,889.46

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Solution

The fourth proportional to 20,654,519.42, 28,503,079.26 and 11,361,889.46 is: 15,679,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654,519.42 : 28,503,079.26 = 11,361,889.46 : x
  2. Step 2: Convert to fraction form
    20,654,519.42/28,503,079.26 = 11,361,889.46/x
  3. Step 3: Cross multiply
    20,654,519.42x = 28,503,079.26 × 11,361,889.46
  4. Step 4: Simplify right side
    20,654,519.42x = 323,848,835,821,738.62
  5. Step 5: Solve for x
    x = 323,848,835,821,738.62/20,654,519.42
  6. Step 6: Final answer
    x = 15,679,320.79

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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.