Home / 909,660,676.32-1,255,331,735.22-491,972,961.48

Finding the Fourth Proportional to 909,660,676.32, 1,255,331,735.22 and 491,972,961.48

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Solution

The fourth proportional to 909,660,676.32, 1,255,331,735.22 and 491,972,961.48 is: 678,922,687.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,660,676.32 : 1,255,331,735.22 = 491,972,961.48 : x
  2. Step 2: Convert to fraction form
    909,660,676.32/1,255,331,735.22 = 491,972,961.48/x
  3. Step 3: Cross multiply
    909,660,676.32x = 1,255,331,735.22 × 491,972,961.48
  4. Step 4: Simplify right side
    909,660,676.32x = 617,589,271,416,010,624
  5. Step 5: Solve for x
    x = 617,589,271,416,010,624/909,660,676.32
  6. Step 6: Final answer
    x = 678,922,687.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.