Home / 2,165,863.40-2,987,953.28-1,305,945.94

Finding the Fourth Proportional to 2,165,863.40, 2,987,953.28 and 1,305,945.94

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Solution

The fourth proportional to 2,165,863.40, 2,987,953.28 and 1,305,945.94 is: 1,801,639.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,863.40 : 2,987,953.28 = 1,305,945.94 : x
  2. Step 2: Convert to fraction form
    2,165,863.40/2,987,953.28 = 1,305,945.94/x
  3. Step 3: Cross multiply
    2,165,863.40x = 2,987,953.28 × 1,305,945.94
  4. Step 4: Simplify right side
    2,165,863.40x = 3,902,105,454,925.68
  5. Step 5: Solve for x
    x = 3,902,105,454,925.68/2,165,863.40
  6. Step 6: Final answer
    x = 1,801,639.69

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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.