Home / 100,356,368.78-138,540,449.01-67,304,527.56

Finding the Fourth Proportional to 100,356,368.78, 138,540,449.01 and 67,304,527.56

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Solution

The fourth proportional to 100,356,368.78, 138,540,449.01 and 67,304,527.56 is: 92,912,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,356,368.78 : 138,540,449.01 = 67,304,527.56 : x
  2. Step 2: Convert to fraction form
    100,356,368.78/138,540,449.01 = 67,304,527.56/x
  3. Step 3: Cross multiply
    100,356,368.78x = 138,540,449.01 × 67,304,527.56
  4. Step 4: Simplify right side
    100,356,368.78x = 9,324,399,468,820,712
  5. Step 5: Solve for x
    x = 9,324,399,468,820,712/100,356,368.78
  6. Step 6: Final answer
    x = 92,912,882.18

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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.