Home / 100,356,390.66-138,540,479.21-67,304,549.44

Finding the Fourth Proportional to 100,356,390.66, 138,540,479.21 and 67,304,549.44

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Solution

The fourth proportional to 100,356,390.66, 138,540,479.21 and 67,304,549.44 is: 92,912,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,356,390.66 : 138,540,479.21 = 67,304,549.44 : x
  2. Step 2: Convert to fraction form
    100,356,390.66/138,540,479.21 = 67,304,549.44/x
  3. Step 3: Cross multiply
    100,356,390.66x = 138,540,479.21 × 67,304,549.44
  4. Step 4: Simplify right side
    100,356,390.66x = 9,324,404,532,430,738
  5. Step 5: Solve for x
    x = 9,324,404,532,430,738/100,356,390.66
  6. Step 6: Final answer
    x = 92,912,912.38

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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.