Home / 2,152,219.68-2,969,352.24-1,388,780.64

Finding the Fourth Proportional to 2,152,219.68, 2,969,352.24 and 1,388,780.64

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Solution

The fourth proportional to 2,152,219.68, 2,969,352.24 and 1,388,780.64 is: 1,916,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152,219.68 : 2,969,352.24 = 1,388,780.64 : x
  2. Step 2: Convert to fraction form
    2,152,219.68/2,969,352.24 = 1,388,780.64/x
  3. Step 3: Cross multiply
    2,152,219.68x = 2,969,352.24 × 1,388,780.64
  4. Step 4: Simplify right side
    2,152,219.68x = 4,123,778,904,252.63
  5. Step 5: Solve for x
    x = 4,123,778,904,252.63/2,152,219.68
  6. Step 6: Final answer
    x = 1,916,058.54

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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.