Home / 83,321,385.31-124,988,064.90-28,733,185.54

Finding the Fourth Proportional to 83,321,385.31, 124,988,064.90 and 28,733,185.54

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Solution

The fourth proportional to 83,321,385.31, 124,988,064.90 and 28,733,185.54 is: 43,101,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,321,385.31 : 124,988,064.90 = 28,733,185.54 : x
  2. Step 2: Convert to fraction form
    83,321,385.31/124,988,064.90 = 28,733,185.54/x
  3. Step 3: Cross multiply
    83,321,385.31x = 124,988,064.90 × 28,733,185.54
  4. Step 4: Simplify right side
    83,321,385.31x = 3,591,305,259,057,261.50
  5. Step 5: Solve for x
    x = 3,591,305,259,057,261.50/83,321,385.31
  6. Step 6: Final answer
    x = 43,101,842.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.