Home / 2,105,705.37-2,905,873.41-1,138,835.66

Finding the Fourth Proportional to 2,105,705.37, 2,905,873.41 and 1,138,835.66

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Solution

The fourth proportional to 2,105,705.37, 2,905,873.41 and 1,138,835.66 is: 1,571,593.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,705.37 : 2,905,873.41 = 1,138,835.66 : x
  2. Step 2: Convert to fraction form
    2,105,705.37/2,905,873.41 = 1,138,835.66/x
  3. Step 3: Cross multiply
    2,105,705.37x = 2,905,873.41 × 1,138,835.66
  4. Step 4: Simplify right side
    2,105,705.37x = 3,309,312,259,121.46
  5. Step 5: Solve for x
    x = 3,309,312,259,121.46/2,105,705.37
  6. Step 6: Final answer
    x = 1,571,593.21

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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.