Home / 68,958,766.88-103,453,288.56-20,440,363.04

Finding the Fourth Proportional to 68,958,766.88, 103,453,288.56 and 20,440,363.04

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Solution

The fourth proportional to 68,958,766.88, 103,453,288.56 and 20,440,363.04 is: 30,665,031.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,958,766.88 : 103,453,288.56 = 20,440,363.04 : x
  2. Step 2: Convert to fraction form
    68,958,766.88/103,453,288.56 = 20,440,363.04/x
  3. Step 3: Cross multiply
    68,958,766.88x = 103,453,288.56 × 20,440,363.04
  4. Step 4: Simplify right side
    68,958,766.88x = 2,114,622,775,848,278.75
  5. Step 5: Solve for x
    x = 2,114,622,775,848,278.75/68,958,766.88
  6. Step 6: Final answer
    x = 30,665,031.75

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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.