Home / 206,578,531.70-309,150,352.20-142,008,450.20

Finding the Fourth Proportional to 206,578,531.70, 309,150,352.20 and 142,008,450.20

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Solution

The fourth proportional to 206,578,531.70, 309,150,352.20 and 142,008,450.20 is: 212,519,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,578,531.70 : 309,150,352.20 = 142,008,450.20 : x
  2. Step 2: Convert to fraction form
    206,578,531.70/309,150,352.20 = 142,008,450.20/x
  3. Step 3: Cross multiply
    206,578,531.70x = 309,150,352.20 × 142,008,450.20
  4. Step 4: Simplify right side
    206,578,531.70x = 43,901,962,394,706,152
  5. Step 5: Solve for x
    x = 43,901,962,394,706,152/206,578,531.70
  6. Step 6: Final answer
    x = 212,519,481.25

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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.