Home / 12,223,147,781.70-18,334,721,672.55-8,271,458,793.90

Finding the Fourth Proportional to 12,223,147,781.70, 18,334,721,672.55 and 8,271,458,793.90

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Solution

The fourth proportional to 12,223,147,781.70, 18,334,721,672.55 and 8,271,458,793.90 is: 12,407,188,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223,147,781.70 : 18,334,721,672.55 = 8,271,458,793.90 : x
  2. Step 2: Convert to fraction form
    12,223,147,781.70/18,334,721,672.55 = 8,271,458,793.90/x
  3. Step 3: Cross multiply
    12,223,147,781.70x = 18,334,721,672.55 × 8,271,458,793.90
  4. Step 4: Simplify right side
    12,223,147,781.70x = 151,654,894,812,122,611,712
  5. Step 5: Solve for x
    x = 151,654,894,812,122,611,712/12,223,147,781.70
  6. Step 6: Final answer
    x = 12,407,188,190.85

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Double scale
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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.