Home / 167,988,342.80-231,823,860.36-90,726,006.80

Finding the Fourth Proportional to 167,988,342.80, 231,823,860.36 and 90,726,006.80

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Solution

The fourth proportional to 167,988,342.80, 231,823,860.36 and 90,726,006.80 is: 125,201,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,988,342.80 : 231,823,860.36 = 90,726,006.80 : x
  2. Step 2: Convert to fraction form
    167,988,342.80/231,823,860.36 = 90,726,006.80/x
  3. Step 3: Cross multiply
    167,988,342.80x = 231,823,860.36 × 90,726,006.80
  4. Step 4: Simplify right side
    167,988,342.80x = 21,032,453,131,423,612
  5. Step 5: Solve for x
    x = 21,032,453,131,423,612/167,988,342.80
  6. Step 6: Final answer
    x = 125,201,860.92

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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.