Home / 911,008,003.60-1,366,512,005.40-667,351,709.20

Finding the Fourth Proportional to 911,008,003.60, 1,366,512,005.40 and 667,351,709.20

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Solution

The fourth proportional to 911,008,003.60, 1,366,512,005.40 and 667,351,709.20 is: 1,001,027,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,008,003.60 : 1,366,512,005.40 = 667,351,709.20 : x
  2. Step 2: Convert to fraction form
    911,008,003.60/1,366,512,005.40 = 667,351,709.20/x
  3. Step 3: Cross multiply
    911,008,003.60x = 1,366,512,005.40 × 667,351,709.20
  4. Step 4: Simplify right side
    911,008,003.60x = 911,944,122,446,009,728
  5. Step 5: Solve for x
    x = 911,944,122,446,009,728/911,008,003.60
  6. Step 6: Final answer
    x = 1,001,027,563.80

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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.