Home / 87,675,601.20-131,765,344.20-76,590,135.60

Finding the Fourth Proportional to 87,675,601.20, 131,765,344.20 and 76,590,135.60

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Solution

The fourth proportional to 87,675,601.20, 131,765,344.20 and 76,590,135.60 is: 115,105,290.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,675,601.20 : 131,765,344.20 = 76,590,135.60 : x
  2. Step 2: Convert to fraction form
    87,675,601.20/131,765,344.20 = 76,590,135.60/x
  3. Step 3: Cross multiply
    87,675,601.20x = 131,765,344.20 × 76,590,135.60
  4. Step 4: Simplify right side
    87,675,601.20x = 10,091,925,579,658,672
  5. Step 5: Solve for x
    x = 10,091,925,579,658,672/87,675,601.20
  6. Step 6: Final answer
    x = 115,105,290.89

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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.