Home / 80,212,297,907.55-120,318,446,861.33-43,019,930,963.55

Finding the Fourth Proportional to 80,212,297,907.55, 120,318,446,861.33 and 43,019,930,963.55

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Solution

The fourth proportional to 80,212,297,907.55, 120,318,446,861.33 and 43,019,930,963.55 is: 64,529,896,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212,297,907.55 : 120,318,446,861.33 = 43,019,930,963.55 : x
  2. Step 2: Convert to fraction form
    80,212,297,907.55/120,318,446,861.33 = 43,019,930,963.55/x
  3. Step 3: Cross multiply
    80,212,297,907.55x = 120,318,446,861.33 × 43,019,930,963.55
  4. Step 4: Simplify right side
    80,212,297,907.55x = 5,176,091,277,615,975,890,944
  5. Step 5: Solve for x
    x = 5,176,091,277,615,975,890,944/80,212,297,907.55
  6. Step 6: Final answer
    x = 64,529,896,445.33

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Double scale
Find fourth proportional to 80,212,297,908.55, 120,318,446,862.83 and 43,019,930,964.55
Similar ratio
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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.