Home / 66,199,200.30-99,298,800.45-20,760,921.90

Finding the Fourth Proportional to 66,199,200.30, 99,298,800.45 and 20,760,921.90

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Solution

The fourth proportional to 66,199,200.30, 99,298,800.45 and 20,760,921.90 is: 31,141,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199,200.30 : 99,298,800.45 = 20,760,921.90 : x
  2. Step 2: Convert to fraction form
    66,199,200.30/99,298,800.45 = 20,760,921.90/x
  3. Step 3: Cross multiply
    66,199,200.30x = 99,298,800.45 × 20,760,921.90
  4. Step 4: Simplify right side
    66,199,200.30x = 2,061,534,640,906,134.75
  5. Step 5: Solve for x
    x = 2,061,534,640,906,134.75/66,199,200.30
  6. Step 6: Final answer
    x = 31,141,382.85

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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.