Home / 259,206,372.41-388,809,932.82-105,852,428.85

Finding the Fourth Proportional to 259,206,372.41, 388,809,932.82 and 105,852,428.85

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Solution

The fourth proportional to 259,206,372.41, 388,809,932.82 and 105,852,428.85 is: 158,778,796.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,206,372.41 : 388,809,932.82 = 105,852,428.85 : x
  2. Step 2: Convert to fraction form
    259,206,372.41/388,809,932.82 = 105,852,428.85/x
  3. Step 3: Cross multiply
    259,206,372.41x = 388,809,932.82 × 105,852,428.85
  4. Step 4: Simplify right side
    259,206,372.41x = 41,156,475,749,618,560
  5. Step 5: Solve for x
    x = 41,156,475,749,618,560/259,206,372.41
  6. Step 6: Final answer
    x = 158,778,796.09

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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.