Home / 18,432,522.81-27,639,685.49-5,649,945.21

Finding the Fourth Proportional to 18,432,522.81, 27,639,685.49 and 5,649,945.21

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Solution

The fourth proportional to 18,432,522.81, 27,639,685.49 and 5,649,945.21 is: 8,472,128.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432,522.81 : 27,639,685.49 = 5,649,945.21 : x
  2. Step 2: Convert to fraction form
    18,432,522.81/27,639,685.49 = 5,649,945.21/x
  3. Step 3: Cross multiply
    18,432,522.81x = 27,639,685.49 × 5,649,945.21
  4. Step 4: Simplify right side
    18,432,522.81x = 156,162,708,611,882.28
  5. Step 5: Solve for x
    x = 156,162,708,611,882.28/18,432,522.81
  6. Step 6: Final answer
    x = 8,472,128.87

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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.