Home / 7,859,770-11,789,652.80-2,179,994.96

Finding the Fourth Proportional to 7,859,770, 11,789,652.80 and 2,179,994.96

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Solution

The fourth proportional to 7,859,770, 11,789,652.80 and 2,179,994.96 is: 3,269,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859,770 : 11,789,652.80 = 2,179,994.96 : x
  2. Step 2: Convert to fraction form
    7,859,770/11,789,652.80 = 2,179,994.96/x
  3. Step 3: Cross multiply
    7,859,770x = 11,789,652.80 × 2,179,994.96
  4. Step 4: Simplify right side
    7,859,770x = 25,701,383,684,149.89
  5. Step 5: Solve for x
    x = 25,701,383,684,149.89/7,859,770
  6. Step 6: Final answer
    x = 3,269,991.83

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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.