Home / 8,771,396.80-13,138,432.80-7,278,404.80

Finding the Fourth Proportional to 8,771,396.80, 13,138,432.80 and 7,278,404.80

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Solution

The fourth proportional to 8,771,396.80, 13,138,432.80 and 7,278,404.80 is: 10,902,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771,396.80 : 13,138,432.80 = 7,278,404.80 : x
  2. Step 2: Convert to fraction form
    8,771,396.80/13,138,432.80 = 7,278,404.80/x
  3. Step 3: Cross multiply
    8,771,396.80x = 13,138,432.80 × 7,278,404.80
  4. Step 4: Simplify right side
    8,771,396.80x = 95,626,832,355,997.44
  5. Step 5: Solve for x
    x = 95,626,832,355,997.44/8,771,396.80
  6. Step 6: Final answer
    x = 10,902,121.35

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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.