Home / 167,988,345.80-231,823,864.50-90,726,009.80

Finding the Fourth Proportional to 167,988,345.80, 231,823,864.50 and 90,726,009.80

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Solution

The fourth proportional to 167,988,345.80, 231,823,864.50 and 90,726,009.80 is: 125,201,865.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,988,345.80 : 231,823,864.50 = 90,726,009.80 : x
  2. Step 2: Convert to fraction form
    167,988,345.80/231,823,864.50 = 90,726,009.80/x
  3. Step 3: Cross multiply
    167,988,345.80x = 231,823,864.50 × 90,726,009.80
  4. Step 4: Simplify right side
    167,988,345.80x = 21,032,454,202,500,872
  5. Step 5: Solve for x
    x = 21,032,454,202,500,872/167,988,345.80
  6. Step 6: Final answer
    x = 125,201,865.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.