Home / 133,979,144.21-200,818,085.42-68,215,687.53

Finding the Fourth Proportional to 133,979,144.21, 200,818,085.42 and 68,215,687.53

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Solution

The fourth proportional to 133,979,144.21, 200,818,085.42 and 68,215,687.53 is: 102,246,837.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,979,144.21 : 200,818,085.42 = 68,215,687.53 : x
  2. Step 2: Convert to fraction form
    133,979,144.21/200,818,085.42 = 68,215,687.53/x
  3. Step 3: Cross multiply
    133,979,144.21x = 200,818,085.42 × 68,215,687.53
  4. Step 4: Simplify right side
    133,979,144.21x = 13,698,943,765,930,642
  5. Step 5: Solve for x
    x = 13,698,943,765,930,642/133,979,144.21
  6. Step 6: Final answer
    x = 102,246,837.35

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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.