Home / 19,010,012.70-28,515,019.05-16,919,823.90

Finding the Fourth Proportional to 19,010,012.70, 28,515,019.05 and 16,919,823.90

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Solution

The fourth proportional to 19,010,012.70, 28,515,019.05 and 16,919,823.90 is: 25,379,735.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010,012.70 : 28,515,019.05 = 16,919,823.90 : x
  2. Step 2: Convert to fraction form
    19,010,012.70/28,515,019.05 = 16,919,823.90/x
  3. Step 3: Cross multiply
    19,010,012.70x = 28,515,019.05 × 16,919,823.90
  4. Step 4: Simplify right side
    19,010,012.70x = 482,469,100,831,145.25
  5. Step 5: Solve for x
    x = 482,469,100,831,145.25/19,010,012.70
  6. Step 6: Final answer
    x = 25,379,735.85

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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.