Home / 218,436,999.40-327,230,346.30-131,918,404.60

Finding the Fourth Proportional to 218,436,999.40, 327,230,346.30 and 131,918,404.60

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Solution

The fourth proportional to 218,436,999.40, 327,230,346.30 and 131,918,404.60 is: 197,620,848.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,436,999.40 : 327,230,346.30 = 131,918,404.60 : x
  2. Step 2: Convert to fraction form
    218,436,999.40/327,230,346.30 = 131,918,404.60/x
  3. Step 3: Cross multiply
    218,436,999.40x = 327,230,346.30 × 131,918,404.60
  4. Step 4: Simplify right side
    218,436,999.40x = 43,167,705,220,601,512
  5. Step 5: Solve for x
    x = 43,167,705,220,601,512/218,436,999.40
  6. Step 6: Final answer
    x = 197,620,848.75

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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.