Home / 167,988,350.80-231,823,871.40-90,726,014.80

Finding the Fourth Proportional to 167,988,350.80, 231,823,871.40 and 90,726,014.80

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Solution

The fourth proportional to 167,988,350.80, 231,823,871.40 and 90,726,014.80 is: 125,201,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,988,350.80 : 231,823,871.40 = 90,726,014.80 : x
  2. Step 2: Convert to fraction form
    167,988,350.80/231,823,871.40 = 90,726,014.80/x
  3. Step 3: Cross multiply
    167,988,350.80x = 231,823,871.40 × 90,726,014.80
  4. Step 4: Simplify right side
    167,988,350.80x = 21,032,455,987,629,696
  5. Step 5: Solve for x
    x = 21,032,455,987,629,696/167,988,350.80
  6. Step 6: Final answer
    x = 125,201,871.96

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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.