Home / 120,383,745.89-166,130,545.74-65,379,996.05

Finding the Fourth Proportional to 120,383,745.89, 166,130,545.74 and 65,379,996.05

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Solution

The fourth proportional to 120,383,745.89, 166,130,545.74 and 65,379,996.05 is: 90,224,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,383,745.89 : 166,130,545.74 = 65,379,996.05 : x
  2. Step 2: Convert to fraction form
    120,383,745.89/166,130,545.74 = 65,379,996.05/x
  3. Step 3: Cross multiply
    120,383,745.89x = 166,130,545.74 × 65,379,996.05
  4. Step 4: Simplify right side
    120,383,745.89x = 10,861,614,424,265,544
  5. Step 5: Solve for x
    x = 10,861,614,424,265,544/120,383,745.89
  6. Step 6: Final answer
    x = 90,224,924.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.