Home / 2,825,911.50-3,899,860.47-1,618,920.78

Finding the Fourth Proportional to 2,825,911.50, 3,899,860.47 and 1,618,920.78

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Solution

The fourth proportional to 2,825,911.50, 3,899,860.47 and 1,618,920.78 is: 2,234,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825,911.50 : 3,899,860.47 = 1,618,920.78 : x
  2. Step 2: Convert to fraction form
    2,825,911.50/3,899,860.47 = 1,618,920.78/x
  3. Step 3: Cross multiply
    2,825,911.50x = 3,899,860.47 × 1,618,920.78
  4. Step 4: Simplify right side
    2,825,911.50x = 6,313,565,153,983.57
  5. Step 5: Solve for x
    x = 6,313,565,153,983.57/2,825,911.50
  6. Step 6: Final answer
    x = 2,234,169.45

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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.