Home / 2,138,513.46-2,951,148.51-1,171,680.36

Finding the Fourth Proportional to 2,138,513.46, 2,951,148.51 and 1,171,680.36

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Solution

The fourth proportional to 2,138,513.46, 2,951,148.51 and 1,171,680.36 is: 1,616,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,513.46 : 2,951,148.51 = 1,171,680.36 : x
  2. Step 2: Convert to fraction form
    2,138,513.46/2,951,148.51 = 1,171,680.36/x
  3. Step 3: Cross multiply
    2,138,513.46x = 2,951,148.51 × 1,171,680.36
  4. Step 4: Simplify right side
    2,138,513.46x = 3,457,802,748,610.26
  5. Step 5: Solve for x
    x = 3,457,802,748,610.26/2,138,513.46
  6. Step 6: Final answer
    x = 1,616,918.86

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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.