Home / 82,571,640.30-123,857,460.45-55,361,861.10

Finding the Fourth Proportional to 82,571,640.30, 123,857,460.45 and 55,361,861.10

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Solution

The fourth proportional to 82,571,640.30, 123,857,460.45 and 55,361,861.10 is: 83,042,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,571,640.30 : 123,857,460.45 = 55,361,861.10 : x
  2. Step 2: Convert to fraction form
    82,571,640.30/123,857,460.45 = 55,361,861.10/x
  3. Step 3: Cross multiply
    82,571,640.30x = 123,857,460.45 × 55,361,861.10
  4. Step 4: Simplify right side
    82,571,640.30x = 6,856,979,521,631,644
  5. Step 5: Solve for x
    x = 6,856,979,521,631,644/82,571,640.30
  6. Step 6: Final answer
    x = 83,042,791.65

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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.