Home / 8,422,819.22-11,612,958.15-7,029,385.08

Finding the Fourth Proportional to 8,422,819.22, 11,612,958.15 and 7,029,385.08

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Solution

The fourth proportional to 8,422,819.22, 11,612,958.15 and 7,029,385.08 is: 9,691,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422,819.22 : 11,612,958.15 = 7,029,385.08 : x
  2. Step 2: Convert to fraction form
    8,422,819.22/11,612,958.15 = 7,029,385.08/x
  3. Step 3: Cross multiply
    8,422,819.22x = 11,612,958.15 × 7,029,385.08
  4. Step 4: Simplify right side
    8,422,819.22x = 81,631,954,802,408.89
  5. Step 5: Solve for x
    x = 81,631,954,802,408.89/8,422,819.22
  6. Step 6: Final answer
    x = 9,691,761.47

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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.