Home / 99,667,930.80-149,501,896.20-61,204,724.40

Finding the Fourth Proportional to 99,667,930.80, 149,501,896.20 and 61,204,724.40

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Solution

The fourth proportional to 99,667,930.80, 149,501,896.20 and 61,204,724.40 is: 91,807,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,667,930.80 : 149,501,896.20 = 61,204,724.40 : x
  2. Step 2: Convert to fraction form
    99,667,930.80/149,501,896.20 = 61,204,724.40/x
  3. Step 3: Cross multiply
    99,667,930.80x = 149,501,896.20 × 61,204,724.40
  4. Step 4: Simplify right side
    99,667,930.80x = 9,150,222,354,198,406
  5. Step 5: Solve for x
    x = 9,150,222,354,198,406/99,667,930.80
  6. Step 6: Final answer
    x = 91,807,086.60

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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.