Home / 18,212,856.60-27,315,785.70-5,433,778.20

Finding the Fourth Proportional to 18,212,856.60, 27,315,785.70 and 5,433,778.20

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Solution

The fourth proportional to 18,212,856.60, 27,315,785.70 and 5,433,778.20 is: 8,149,623.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212,856.60 : 27,315,785.70 = 5,433,778.20 : x
  2. Step 2: Convert to fraction form
    18,212,856.60/27,315,785.70 = 5,433,778.20/x
  3. Step 3: Cross multiply
    18,212,856.60x = 27,315,785.70 × 5,433,778.20
  4. Step 4: Simplify right side
    18,212,856.60x = 148,427,920,852,531.75
  5. Step 5: Solve for x
    x = 148,427,920,852,531.75/18,212,856.60
  6. Step 6: Final answer
    x = 8,149,623.32

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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.