Home / 100,356,391.65-138,540,480.60-67,304,550.45

Finding the Fourth Proportional to 100,356,391.65, 138,540,480.60 and 67,304,550.45

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Solution

The fourth proportional to 100,356,391.65, 138,540,480.60 and 67,304,550.45 is: 92,912,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,356,391.65 : 138,540,480.60 = 67,304,550.45 : x
  2. Step 2: Convert to fraction form
    100,356,391.65/138,540,480.60 = 67,304,550.45/x
  3. Step 3: Cross multiply
    100,356,391.65x = 138,540,480.60 × 67,304,550.45
  4. Step 4: Simplify right side
    100,356,391.65x = 9,324,404,765,909,946
  5. Step 5: Solve for x
    x = 9,324,404,765,909,946/100,356,391.65
  6. Step 6: Final answer
    x = 92,912,913.79

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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.