Home / 12,632,960,816.35-18,919,359,611.35-7,309,854,728.93

Finding the Fourth Proportional to 12,632,960,816.35, 18,919,359,611.35 and 7,309,854,728.93

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Solution

The fourth proportional to 12,632,960,816.35, 18,919,359,611.35 and 7,309,854,728.93 is: 10,947,375,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632,960,816.35 : 18,919,359,611.35 = 7,309,854,728.93 : x
  2. Step 2: Convert to fraction form
    12,632,960,816.35/18,919,359,611.35 = 7,309,854,728.93/x
  3. Step 3: Cross multiply
    12,632,960,816.35x = 18,919,359,611.35 × 7,309,854,728.93
  4. Step 4: Simplify right side
    12,632,960,816.35x = 138,297,770,323,379,404,800
  5. Step 5: Solve for x
    x = 138,297,770,323,379,404,800/12,632,960,816.35
  6. Step 6: Final answer
    x = 10,947,375,863.34

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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.