Home / 2,128,118.40-3,192,177.60-1,008,374.40

Finding the Fourth Proportional to 2,128,118.40, 3,192,177.60 and 1,008,374.40

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Solution

The fourth proportional to 2,128,118.40, 3,192,177.60 and 1,008,374.40 is: 1,512,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,118.40 : 3,192,177.60 = 1,008,374.40 : x
  2. Step 2: Convert to fraction form
    2,128,118.40/3,192,177.60 = 1,008,374.40/x
  3. Step 3: Cross multiply
    2,128,118.40x = 3,192,177.60 × 1,008,374.40
  4. Step 4: Simplify right side
    2,128,118.40x = 3,218,910,172,093.44
  5. Step 5: Solve for x
    x = 3,218,910,172,093.44/2,128,118.40
  6. Step 6: Final answer
    x = 1,512,561.60

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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.