Home / 167,988,349.80-231,823,870.02-90,726,013.80

Finding the Fourth Proportional to 167,988,349.80, 231,823,870.02 and 90,726,013.80

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Solution

The fourth proportional to 167,988,349.80, 231,823,870.02 and 90,726,013.80 is: 125,201,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,988,349.80 : 231,823,870.02 = 90,726,013.80 : x
  2. Step 2: Convert to fraction form
    167,988,349.80/231,823,870.02 = 90,726,013.80/x
  3. Step 3: Cross multiply
    167,988,349.80x = 231,823,870.02 × 90,726,013.80
  4. Step 4: Simplify right side
    167,988,349.80x = 21,032,455,630,603,928
  5. Step 5: Solve for x
    x = 21,032,455,630,603,928/167,988,349.80
  6. Step 6: Final answer
    x = 125,201,870.58

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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.