Home / 71,912,788.50-107,857,372.96-30,961,202.57

Finding the Fourth Proportional to 71,912,788.50, 107,857,372.96 and 30,961,202.57

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Solution

The fourth proportional to 71,912,788.50, 107,857,372.96 and 30,961,202.57 is: 46,436,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,912,788.50 : 107,857,372.96 = 30,961,202.57 : x
  2. Step 2: Convert to fraction form
    71,912,788.50/107,857,372.96 = 30,961,202.57/x
  3. Step 3: Cross multiply
    71,912,788.50x = 107,857,372.96 × 30,961,202.57
  4. Step 4: Simplify right side
    71,912,788.50x = 3,339,393,972,612,169
  5. Step 5: Solve for x
    x = 3,339,393,972,612,169/71,912,788.50
  6. Step 6: Final answer
    x = 46,436,719.28

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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.