Home / 72,816,944.85-109,224,669.66-42,091,974.09

Finding the Fourth Proportional to 72,816,944.85, 109,224,669.66 and 42,091,974.09

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Solution

The fourth proportional to 72,816,944.85, 109,224,669.66 and 42,091,974.09 is: 63,137,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,816,944.85 : 109,224,669.66 = 42,091,974.09 : x
  2. Step 2: Convert to fraction form
    72,816,944.85/109,224,669.66 = 42,091,974.09/x
  3. Step 3: Cross multiply
    72,816,944.85x = 109,224,669.66 × 42,091,974.09
  4. Step 4: Simplify right side
    72,816,944.85x = 4,597,481,965,317,529
  5. Step 5: Solve for x
    x = 4,597,481,965,317,529/72,816,944.85
  6. Step 6: Final answer
    x = 63,137,528.97

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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.