Home / 15,361,917.12-21,199,378.56-8,486,399.04

Finding the Fourth Proportional to 15,361,917.12, 21,199,378.56 and 8,486,399.04

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Solution

The fourth proportional to 15,361,917.12, 21,199,378.56 and 8,486,399.04 is: 11,711,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361,917.12 : 21,199,378.56 = 8,486,399.04 : x
  2. Step 2: Convert to fraction form
    15,361,917.12/21,199,378.56 = 8,486,399.04/x
  3. Step 3: Cross multiply
    15,361,917.12x = 21,199,378.56 × 8,486,399.04
  4. Step 4: Simplify right side
    15,361,917.12x = 179,906,385,860,180.56
  5. Step 5: Solve for x
    x = 179,906,385,860,180.56/15,361,917.12
  6. Step 6: Final answer
    x = 11,711,193.63

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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.