Home / 309,863,896.82-464,687,214.52-91,455,963.38

Finding the Fourth Proportional to 309,863,896.82, 464,687,214.52 and 91,455,963.38

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Solution

The fourth proportional to 309,863,896.82, 464,687,214.52 and 91,455,963.38 is: 137,151,882.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,863,896.82 : 464,687,214.52 = 91,455,963.38 : x
  2. Step 2: Convert to fraction form
    309,863,896.82/464,687,214.52 = 91,455,963.38/x
  3. Step 3: Cross multiply
    309,863,896.82x = 464,687,214.52 × 91,455,963.38
  4. Step 4: Simplify right side
    309,863,896.82x = 42,498,416,874,295,320
  5. Step 5: Solve for x
    x = 42,498,416,874,295,320/309,863,896.82
  6. Step 6: Final answer
    x = 137,151,882.84

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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.