Home / 2,103,408.30-3,155,112.45-1,978,992.30

Finding the Fourth Proportional to 2,103,408.30, 3,155,112.45 and 1,978,992.30

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Solution

The fourth proportional to 2,103,408.30, 3,155,112.45 and 1,978,992.30 is: 2,968,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103,408.30 : 3,155,112.45 = 1,978,992.30 : x
  2. Step 2: Convert to fraction form
    2,103,408.30/3,155,112.45 = 1,978,992.30/x
  3. Step 3: Cross multiply
    2,103,408.30x = 3,155,112.45 × 1,978,992.30
  4. Step 4: Simplify right side
    2,103,408.30x = 6,243,943,244,184.14
  5. Step 5: Solve for x
    x = 6,243,943,244,184.14/2,103,408.30
  6. Step 6: Final answer
    x = 2,968,488.45

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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.