Home / 2,125,122.45-3,188,181.95-845,807.42

Finding the Fourth Proportional to 2,125,122.45, 3,188,181.95 and 845,807.42

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Solution

The fourth proportional to 2,125,122.45, 3,188,181.95 and 845,807.42 is: 1,268,909.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125,122.45 : 3,188,181.95 = 845,807.42 : x
  2. Step 2: Convert to fraction form
    2,125,122.45/3,188,181.95 = 845,807.42/x
  3. Step 3: Cross multiply
    2,125,122.45x = 3,188,181.95 × 845,807.42
  4. Step 4: Simplify right side
    2,125,122.45x = 2,696,587,929,450.12
  5. Step 5: Solve for x
    x = 2,696,587,929,450.12/2,125,122.45
  6. Step 6: Final answer
    x = 1,268,909.44

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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.