Home / 18,489,383.12-27,680,109.24-10,789,432.40

Finding the Fourth Proportional to 18,489,383.12, 27,680,109.24 and 10,789,432.40

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Solution

The fourth proportional to 18,489,383.12, 27,680,109.24 and 10,789,432.40 is: 16,152,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489,383.12 : 27,680,109.24 = 10,789,432.40 : x
  2. Step 2: Convert to fraction form
    18,489,383.12/27,680,109.24 = 10,789,432.40/x
  3. Step 3: Cross multiply
    18,489,383.12x = 27,680,109.24 × 10,789,432.40
  4. Step 4: Simplify right side
    18,489,383.12x = 298,652,667,579,256
  5. Step 5: Solve for x
    x = 298,652,667,579,256/18,489,383.12
  6. Step 6: Final answer
    x = 16,152,657.21

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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.