Home / 76,905,620.20-115,358,430.30-74,218,234.60

Finding the Fourth Proportional to 76,905,620.20, 115,358,430.30 and 74,218,234.60

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Solution

The fourth proportional to 76,905,620.20, 115,358,430.30 and 74,218,234.60 is: 111,327,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,905,620.20 : 115,358,430.30 = 74,218,234.60 : x
  2. Step 2: Convert to fraction form
    76,905,620.20/115,358,430.30 = 74,218,234.60/x
  3. Step 3: Cross multiply
    76,905,620.20x = 115,358,430.30 × 74,218,234.60
  4. Step 4: Simplify right side
    76,905,620.20x = 8,561,699,043,093,147
  5. Step 5: Solve for x
    x = 8,561,699,043,093,147/76,905,620.20
  6. Step 6: Final answer
    x = 111,327,351.90

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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.