Home / 20,800,036.14-28,704,658.08-11,381,392.59

Finding the Fourth Proportional to 20,800,036.14, 28,704,658.08 and 11,381,392.59

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Solution

The fourth proportional to 20,800,036.14, 28,704,658.08 and 11,381,392.59 is: 15,706,654.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,036.14 : 28,704,658.08 = 11,381,392.59 : x
  2. Step 2: Convert to fraction form
    20,800,036.14/28,704,658.08 = 11,381,392.59/x
  3. Step 3: Cross multiply
    20,800,036.14x = 28,704,658.08 × 11,381,392.59
  4. Step 4: Simplify right side
    20,800,036.14x = 326,698,982,770,195.62
  5. Step 5: Solve for x
    x = 326,698,982,770,195.62/20,800,036.14
  6. Step 6: Final answer
    x = 15,706,654.57

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1.5x scale

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.