Home / 2,017,378.20-3,021,920.10-1,387,003.80

Finding the Fourth Proportional to 2,017,378.20, 3,021,920.10 and 1,387,003.80

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Solution

The fourth proportional to 2,017,378.20, 3,021,920.10 and 1,387,003.80 is: 2,077,654.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017,378.20 : 3,021,920.10 = 1,387,003.80 : x
  2. Step 2: Convert to fraction form
    2,017,378.20/3,021,920.10 = 1,387,003.80/x
  3. Step 3: Cross multiply
    2,017,378.20x = 3,021,920.10 × 1,387,003.80
  4. Step 4: Simplify right side
    2,017,378.20x = 4,191,414,661,996.38
  5. Step 5: Solve for x
    x = 4,191,414,661,996.38/2,017,378.20
  6. Step 6: Final answer
    x = 2,077,654.38

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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.