Home / 2,105,759.36-2,905,948.08-1,138,889.43

Finding the Fourth Proportional to 2,105,759.36, 2,905,948.08 and 1,138,889.43

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Solution

The fourth proportional to 2,105,759.36, 2,905,948.08 and 1,138,889.43 is: 1,571,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,759.36 : 2,905,948.08 = 1,138,889.43 : x
  2. Step 2: Convert to fraction form
    2,105,759.36/2,905,948.08 = 1,138,889.43/x
  3. Step 3: Cross multiply
    2,105,759.36x = 2,905,948.08 × 1,138,889.43
  4. Step 4: Simplify right side
    2,105,759.36x = 3,309,553,552,440.79
  5. Step 5: Solve for x
    x = 3,309,553,552,440.79/2,105,759.36
  6. Step 6: Final answer
    x = 1,571,667.51

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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.