Home / 205,519,296.56-308,202,137.40-82,656,144.32

Finding the Fourth Proportional to 205,519,296.56, 308,202,137.40 and 82,656,144.32

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Solution

The fourth proportional to 205,519,296.56, 308,202,137.40 and 82,656,144.32 is: 123,953,325.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,519,296.56 : 308,202,137.40 = 82,656,144.32 : x
  2. Step 2: Convert to fraction form
    205,519,296.56/308,202,137.40 = 82,656,144.32/x
  3. Step 3: Cross multiply
    205,519,296.56x = 308,202,137.40 × 82,656,144.32
  4. Step 4: Simplify right side
    205,519,296.56x = 25,474,800,348,666,864
  5. Step 5: Solve for x
    x = 25,474,800,348,666,864/205,519,296.56
  6. Step 6: Final answer
    x = 123,953,325.92

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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.