Home / 171,936,015.10-257,904,022.65-137,923,791.10

Finding the Fourth Proportional to 171,936,015.10, 257,904,022.65 and 137,923,791.10

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Solution

The fourth proportional to 171,936,015.10, 257,904,022.65 and 137,923,791.10 is: 206,885,686.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,936,015.10 : 257,904,022.65 = 137,923,791.10 : x
  2. Step 2: Convert to fraction form
    171,936,015.10/257,904,022.65 = 137,923,791.10/x
  3. Step 3: Cross multiply
    171,936,015.10x = 257,904,022.65 × 137,923,791.10
  4. Step 4: Simplify right side
    171,936,015.10x = 35,571,100,543,828,268
  5. Step 5: Solve for x
    x = 35,571,100,543,828,268/171,936,015.10
  6. Step 6: Final answer
    x = 206,885,686.65

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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.