Home / 15,420,115.22-21,279,759.15-8,544,597.28

Finding the Fourth Proportional to 15,420,115.22, 21,279,759.15 and 8,544,597.28

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Solution

The fourth proportional to 15,420,115.22, 21,279,759.15 and 8,544,597.28 is: 11,791,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,115.22 : 21,279,759.15 = 8,544,597.28 : x
  2. Step 2: Convert to fraction form
    15,420,115.22/21,279,759.15 = 8,544,597.28/x
  3. Step 3: Cross multiply
    15,420,115.22x = 21,279,759.15 × 8,544,597.28
  4. Step 4: Simplify right side
    15,420,115.22x = 181,826,972,152,145.09
  5. Step 5: Solve for x
    x = 181,826,972,152,145.09/15,420,115.22
  6. Step 6: Final answer
    x = 11,791,544.33

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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.