Home / 2,154,164.89-2,972,765.70-1,187,297.59

Finding the Fourth Proportional to 2,154,164.89, 2,972,765.70 and 1,187,297.59

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Solution

The fourth proportional to 2,154,164.89, 2,972,765.70 and 1,187,297.59 is: 1,638,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,164.89 : 2,972,765.70 = 1,187,297.59 : x
  2. Step 2: Convert to fraction form
    2,154,164.89/2,972,765.70 = 1,187,297.59/x
  3. Step 3: Cross multiply
    2,154,164.89x = 2,972,765.70 × 1,187,297.59
  4. Step 4: Simplify right side
    2,154,164.89x = 3,529,557,551,244.66
  5. Step 5: Solve for x
    x = 3,529,557,551,244.66/2,154,164.89
  6. Step 6: Final answer
    x = 1,638,480.68

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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.