Home / 219,669,530.21-329,493,646.44-81,522,069.20

Finding the Fourth Proportional to 219,669,530.21, 329,493,646.44 and 81,522,069.20

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Solution

The fourth proportional to 219,669,530.21, 329,493,646.44 and 81,522,069.20 is: 122,279,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,669,530.21 : 329,493,646.44 = 81,522,069.20 : x
  2. Step 2: Convert to fraction form
    219,669,530.21/329,493,646.44 = 81,522,069.20/x
  3. Step 3: Cross multiply
    219,669,530.21x = 329,493,646.44 × 81,522,069.20
  4. Step 4: Simplify right side
    219,669,530.21x = 26,861,003,846,042,016
  5. Step 5: Solve for x
    x = 26,861,003,846,042,016/219,669,530.21
  6. Step 6: Final answer
    x = 122,279,151.87

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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.