Home / 766,368,000.30-1,149,552,000.45-221,127,321.90

Finding the Fourth Proportional to 766,368,000.30, 1,149,552,000.45 and 221,127,321.90

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Solution

The fourth proportional to 766,368,000.30, 1,149,552,000.45 and 221,127,321.90 is: 331,690,982.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,368,000.30 : 1,149,552,000.45 = 221,127,321.90 : x
  2. Step 2: Convert to fraction form
    766,368,000.30/1,149,552,000.45 = 221,127,321.90/x
  3. Step 3: Cross multiply
    766,368,000.30x = 1,149,552,000.45 × 221,127,321.90
  4. Step 4: Simplify right side
    766,368,000.30x = 254,197,355,244,296,128
  5. Step 5: Solve for x
    x = 254,197,355,244,296,128/766,368,000.30
  6. Step 6: Final answer
    x = 331,690,982.85

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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.