Home / 80,212,297,941.30-120,318,446,911.95-43,019,930,997.30

Finding the Fourth Proportional to 80,212,297,941.30, 120,318,446,911.95 and 43,019,930,997.30

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Solution

The fourth proportional to 80,212,297,941.30, 120,318,446,911.95 and 43,019,930,997.30 is: 64,529,896,495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212,297,941.30 : 120,318,446,911.95 = 43,019,930,997.30 : x
  2. Step 2: Convert to fraction form
    80,212,297,941.30/120,318,446,911.95 = 43,019,930,997.30/x
  3. Step 3: Cross multiply
    80,212,297,941.30x = 120,318,446,911.95 × 43,019,930,997.30
  4. Step 4: Simplify right side
    80,212,297,941.30x = 5,176,091,283,854,392,819,712
  5. Step 5: Solve for x
    x = 5,176,091,283,854,392,819,712/80,212,297,941.30
  6. Step 6: Final answer
    x = 64,529,896,495.95

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Double scale
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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.