Home / 280,007,998.20-420,011,997.30-183,262,116.60

Finding the Fourth Proportional to 280,007,998.20, 420,011,997.30 and 183,262,116.60

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Solution

The fourth proportional to 280,007,998.20, 420,011,997.30 and 183,262,116.60 is: 274,893,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,007,998.20 : 420,011,997.30 = 183,262,116.60 : x
  2. Step 2: Convert to fraction form
    280,007,998.20/420,011,997.30 = 183,262,116.60/x
  3. Step 3: Cross multiply
    280,007,998.20x = 420,011,997.30 × 183,262,116.60
  4. Step 4: Simplify right side
    280,007,998.20x = 76,972,287,622,591,488
  5. Step 5: Solve for x
    x = 76,972,287,622,591,488/280,007,998.20
  6. Step 6: Final answer
    x = 274,893,174.90

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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.