Home / 2,782,639.64-4,168,523.55-1,917,920.90

Finding the Fourth Proportional to 2,782,639.64, 4,168,523.55 and 1,917,920.90

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Solution

The fourth proportional to 2,782,639.64, 4,168,523.55 and 1,917,920.90 is: 2,873,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782,639.64 : 4,168,523.55 = 1,917,920.90 : x
  2. Step 2: Convert to fraction form
    2,782,639.64/4,168,523.55 = 1,917,920.90/x
  3. Step 3: Cross multiply
    2,782,639.64x = 4,168,523.55 × 1,917,920.90
  4. Step 4: Simplify right side
    2,782,639.64x = 7,994,898,438,687.19
  5. Step 5: Solve for x
    x = 7,994,898,438,687.19/2,782,639.64
  6. Step 6: Final answer
    x = 2,873,134.68

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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.