Home / 57,310,012.20-85,965,018.30-52,019,221.80

Finding the Fourth Proportional to 57,310,012.20, 85,965,018.30 and 52,019,221.80

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Solution

The fourth proportional to 57,310,012.20, 85,965,018.30 and 52,019,221.80 is: 78,028,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,310,012.20 : 85,965,018.30 = 52,019,221.80 : x
  2. Step 2: Convert to fraction form
    57,310,012.20/85,965,018.30 = 52,019,221.80/x
  3. Step 3: Cross multiply
    57,310,012.20x = 85,965,018.30 × 52,019,221.80
  4. Step 4: Simplify right side
    57,310,012.20x = 4,471,833,353,988,758.50
  5. Step 5: Solve for x
    x = 4,471,833,353,988,758.50/57,310,012.20
  6. Step 6: Final answer
    x = 78,028,832.70

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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.