Home / 205,227,189.87-308,331,890.51-131,595,231.49

Finding the Fourth Proportional to 205,227,189.87, 308,331,890.51 and 131,595,231.49

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Solution

The fourth proportional to 205,227,189.87, 308,331,890.51 and 131,595,231.49 is: 197,707,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,227,189.87 : 308,331,890.51 = 131,595,231.49 : x
  2. Step 2: Convert to fraction form
    205,227,189.87/308,331,890.51 = 131,595,231.49/x
  3. Step 3: Cross multiply
    205,227,189.87x = 308,331,890.51 × 131,595,231.49
  4. Step 4: Simplify right side
    205,227,189.87x = 40,575,006,507,412,784
  5. Step 5: Solve for x
    x = 40,575,006,507,412,784/205,227,189.87
  6. Step 6: Final answer
    x = 197,707,752.73

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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.