Home / 2,143,758.60-3,212,873.10-1,642,638.60

Finding the Fourth Proportional to 2,143,758.60, 3,212,873.10 and 1,642,638.60

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Solution

The fourth proportional to 2,143,758.60, 3,212,873.10 and 1,642,638.60 is: 2,461,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,758.60 : 3,212,873.10 = 1,642,638.60 : x
  2. Step 2: Convert to fraction form
    2,143,758.60/3,212,873.10 = 1,642,638.60/x
  3. Step 3: Cross multiply
    2,143,758.60x = 3,212,873.10 × 1,642,638.60
  4. Step 4: Simplify right side
    2,143,758.60x = 5,277,589,370,961.66
  5. Step 5: Solve for x
    x = 5,277,589,370,961.66/2,143,758.60
  6. Step 6: Final answer
    x = 2,461,839.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.