Home / 69,285,996.79-103,915,750.17-20,763,850.59

Finding the Fourth Proportional to 69,285,996.79, 103,915,750.17 and 20,763,850.59

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Solution

The fourth proportional to 69,285,996.79, 103,915,750.17 and 20,763,850.59 is: 31,141,806.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,285,996.79 : 103,915,750.17 = 20,763,850.59 : x
  2. Step 2: Convert to fraction form
    69,285,996.79/103,915,750.17 = 20,763,850.59/x
  3. Step 3: Cross multiply
    69,285,996.79x = 103,915,750.17 × 20,763,850.59
  4. Step 4: Simplify right side
    69,285,996.79x = 2,157,691,110,191,902.75
  5. Step 5: Solve for x
    x = 2,157,691,110,191,902.75/69,285,996.79
  6. Step 6: Final answer
    x = 31,141,806.57

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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.