Home / 2,106,996.78-3,160,893.82-668,042.61

Finding the Fourth Proportional to 2,106,996.78, 3,160,893.82 and 668,042.61

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Solution

The fourth proportional to 2,106,996.78, 3,160,893.82 and 668,042.61 is: 1,002,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,996.78 : 3,160,893.82 = 668,042.61 : x
  2. Step 2: Convert to fraction form
    2,106,996.78/3,160,893.82 = 668,042.61/x
  3. Step 3: Cross multiply
    2,106,996.78x = 3,160,893.82 × 668,042.61
  4. Step 4: Simplify right side
    2,106,996.78x = 2,111,611,775,132.81
  5. Step 5: Solve for x
    x = 2,111,611,775,132.81/2,106,996.78
  6. Step 6: Final answer
    x = 1,002,190.32

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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.