Home / 220,766,712.66-304,644,334.13-121,641,912.90

Finding the Fourth Proportional to 220,766,712.66, 304,644,334.13 and 121,641,912.90

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Solution

The fourth proportional to 220,766,712.66, 304,644,334.13 and 121,641,912.90 is: 167,858,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,766,712.66 : 304,644,334.13 = 121,641,912.90 : x
  2. Step 2: Convert to fraction form
    220,766,712.66/304,644,334.13 = 121,641,912.90/x
  3. Step 3: Cross multiply
    220,766,712.66x = 304,644,334.13 × 121,641,912.90
  4. Step 4: Simplify right side
    220,766,712.66x = 37,057,519,557,567,912
  5. Step 5: Solve for x
    x = 37,057,519,557,567,912/220,766,712.66
  6. Step 6: Final answer
    x = 167,858,274.97

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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.