Home / 19,188,672.66-28,786,000.05-11,510,512.70

Finding the Fourth Proportional to 19,188,672.66, 28,786,000.05 and 11,510,512.70

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Solution

The fourth proportional to 19,188,672.66, 28,786,000.05 and 11,510,512.70 is: 17,267,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188,672.66 : 28,786,000.05 = 11,510,512.70 : x
  2. Step 2: Convert to fraction form
    19,188,672.66/28,786,000.05 = 11,510,512.70/x
  3. Step 3: Cross multiply
    19,188,672.66x = 28,786,000.05 × 11,510,512.70
  4. Step 4: Simplify right side
    19,188,672.66x = 331,341,619,013,795.62
  5. Step 5: Solve for x
    x = 331,341,619,013,795.62/19,188,672.66
  6. Step 6: Final answer
    x = 17,267,563.26

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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.