Home / 31,410,922.72-43,332,523.68-18,358,731.76

Finding the Fourth Proportional to 31,410,922.72, 43,332,523.68 and 18,358,731.76

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Solution

The fourth proportional to 31,410,922.72, 43,332,523.68 and 18,358,731.76 is: 25,326,545.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410,922.72 : 43,332,523.68 = 18,358,731.76 : x
  2. Step 2: Convert to fraction form
    31,410,922.72/43,332,523.68 = 18,358,731.76/x
  3. Step 3: Cross multiply
    31,410,922.72x = 43,332,523.68 × 18,358,731.76
  4. Step 4: Simplify right side
    31,410,922.72x = 795,530,178,724,968.12
  5. Step 5: Solve for x
    x = 795,530,178,724,968.12/31,410,922.72
  6. Step 6: Final answer
    x = 25,326,545.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.