Home / 120,383,744.89-166,130,544.36-65,379,995.05

Finding the Fourth Proportional to 120,383,744.89, 166,130,544.36 and 65,379,995.05

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Solution

The fourth proportional to 120,383,744.89, 166,130,544.36 and 65,379,995.05 is: 90,224,923.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,383,744.89 : 166,130,544.36 = 65,379,995.05 : x
  2. Step 2: Convert to fraction form
    120,383,744.89/166,130,544.36 = 65,379,995.05/x
  3. Step 3: Cross multiply
    120,383,744.89x = 166,130,544.36 × 65,379,995.05
  4. Step 4: Simplify right side
    120,383,744.89x = 10,861,614,167,910,606
  5. Step 5: Solve for x
    x = 10,861,614,167,910,606/120,383,744.89
  6. Step 6: Final answer
    x = 90,224,923.45

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1.5x scale

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.