Home / 3,781,605.69-5,218,800.37-2,128,269.20

Finding the Fourth Proportional to 3,781,605.69, 5,218,800.37 and 2,128,269.20

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Solution

The fourth proportional to 3,781,605.69, 5,218,800.37 and 2,128,269.20 is: 2,937,115.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781,605.69 : 5,218,800.37 = 2,128,269.20 : x
  2. Step 2: Convert to fraction form
    3,781,605.69/5,218,800.37 = 2,128,269.20/x
  3. Step 3: Cross multiply
    3,781,605.69x = 5,218,800.37 × 2,128,269.20
  4. Step 4: Simplify right side
    3,781,605.69x = 11,107,012,057,004.93
  5. Step 5: Solve for x
    x = 11,107,012,057,004.93/3,781,605.69
  6. Step 6: Final answer
    x = 2,937,115.33

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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.