Home / 214,964,346.30-322,446,519.45-128,658,327.90

Finding the Fourth Proportional to 214,964,346.30, 322,446,519.45 and 128,658,327.90

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Solution

The fourth proportional to 214,964,346.30, 322,446,519.45 and 128,658,327.90 is: 192,987,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,964,346.30 : 322,446,519.45 = 128,658,327.90 : x
  2. Step 2: Convert to fraction form
    214,964,346.30/322,446,519.45 = 128,658,327.90/x
  3. Step 3: Cross multiply
    214,964,346.30x = 322,446,519.45 × 128,658,327.90
  4. Step 4: Simplify right side
    214,964,346.30x = 41,485,430,029,611,832
  5. Step 5: Solve for x
    x = 41,485,430,029,611,832/214,964,346.30
  6. Step 6: Final answer
    x = 192,987,491.85

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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.