Home / 475,770,340.78-713,689,907.05-199,143,342.85

Finding the Fourth Proportional to 475,770,340.78, 713,689,907.05 and 199,143,342.85

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Solution

The fourth proportional to 475,770,340.78, 713,689,907.05 and 199,143,342.85 is: 298,729,411.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,770,340.78 : 713,689,907.05 = 199,143,342.85 : x
  2. Step 2: Convert to fraction form
    475,770,340.78/713,689,907.05 = 199,143,342.85/x
  3. Step 3: Cross multiply
    475,770,340.78x = 713,689,907.05 × 199,143,342.85
  4. Step 4: Simplify right side
    475,770,340.78x = 142,126,593,848,242,768
  5. Step 5: Solve for x
    x = 142,126,593,848,242,768/475,770,340.78
  6. Step 6: Final answer
    x = 298,729,411.37

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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.