Home / 18,489,371.56-27,680,091.90-10,789,420.84

Finding the Fourth Proportional to 18,489,371.56, 27,680,091.90 and 10,789,420.84

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Solution

The fourth proportional to 18,489,371.56, 27,680,091.90 and 10,789,420.84 is: 16,152,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489,371.56 : 27,680,091.90 = 10,789,420.84 : x
  2. Step 2: Convert to fraction form
    18,489,371.56/27,680,091.90 = 10,789,420.84/x
  3. Step 3: Cross multiply
    18,489,371.56x = 27,680,091.90 × 10,789,420.84
  4. Step 4: Simplify right side
    18,489,371.56x = 298,652,160,398,975.19
  5. Step 5: Solve for x
    x = 298,652,160,398,975.19/18,489,371.56
  6. Step 6: Final answer
    x = 16,152,639.88

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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.