Home / 2,138,505.96-2,951,138.16-1,171,672.86

Finding the Fourth Proportional to 2,138,505.96, 2,951,138.16 and 1,171,672.86

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Solution

The fourth proportional to 2,138,505.96, 2,951,138.16 and 1,171,672.86 is: 1,616,908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,505.96 : 2,951,138.16 = 1,171,672.86 : x
  2. Step 2: Convert to fraction form
    2,138,505.96/2,951,138.16 = 1,171,672.86/x
  3. Step 3: Cross multiply
    2,138,505.96x = 2,951,138.16 × 1,171,672.86
  4. Step 4: Simplify right side
    2,138,505.96x = 3,457,768,488,182.34
  5. Step 5: Solve for x
    x = 3,457,768,488,182.34/2,138,505.96
  6. Step 6: Final answer
    x = 1,616,908.51

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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.