Home / 2,888,874.76-3,987,934.68-1,909,403.73

Finding the Fourth Proportional to 2,888,874.76, 3,987,934.68 and 1,909,403.73

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Solution

The fourth proportional to 2,888,874.76, 3,987,934.68 and 1,909,403.73 is: 2,635,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888,874.76 : 3,987,934.68 = 1,909,403.73 : x
  2. Step 2: Convert to fraction form
    2,888,874.76/3,987,934.68 = 1,909,403.73/x
  3. Step 3: Cross multiply
    2,888,874.76x = 3,987,934.68 × 1,909,403.73
  4. Step 4: Simplify right side
    2,888,874.76x = 7,614,577,352,988.36
  5. Step 5: Solve for x
    x = 7,614,577,352,988.36/2,888,874.76
  6. Step 6: Final answer
    x = 2,635,828.13

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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.