Home / 20,429,357.85-28,192,704.03-11,262,328.65

Finding the Fourth Proportional to 20,429,357.85, 28,192,704.03 and 11,262,328.65

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Solution

The fourth proportional to 20,429,357.85, 28,192,704.03 and 11,262,328.65 is: 15,542,118.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429,357.85 : 28,192,704.03 = 11,262,328.65 : x
  2. Step 2: Convert to fraction form
    20,429,357.85/28,192,704.03 = 11,262,328.65/x
  3. Step 3: Cross multiply
    20,429,357.85x = 28,192,704.03 × 11,262,328.65
  4. Step 4: Simplify right side
    20,429,357.85x = 317,515,498,318,039.50
  5. Step 5: Solve for x
    x = 317,515,498,318,039.50/20,429,357.85
  6. Step 6: Final answer
    x = 15,542,118.39

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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.