Home / 120,858,885.80-181,288,328.70-104,419,644.20

Finding the Fourth Proportional to 120,858,885.80, 181,288,328.70 and 104,419,644.20

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Solution

The fourth proportional to 120,858,885.80, 181,288,328.70 and 104,419,644.20 is: 156,629,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,858,885.80 : 181,288,328.70 = 104,419,644.20 : x
  2. Step 2: Convert to fraction form
    120,858,885.80/181,288,328.70 = 104,419,644.20/x
  3. Step 3: Cross multiply
    120,858,885.80x = 181,288,328.70 × 104,419,644.20
  4. Step 4: Simplify right side
    120,858,885.80x = 18,930,062,780,466,648
  5. Step 5: Solve for x
    x = 18,930,062,780,466,648/120,858,885.80
  6. Step 6: Final answer
    x = 156,629,466.30

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1.5x scale

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.