Home / 13,206,451.78-18,217,182.18-8,303,912.20

Finding the Fourth Proportional to 13,206,451.78, 18,217,182.18 and 8,303,912.20

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Solution

The fourth proportional to 13,206,451.78, 18,217,182.18 and 8,303,912.20 is: 11,454,543.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,451.78 : 18,217,182.18 = 8,303,912.20 : x
  2. Step 2: Convert to fraction form
    13,206,451.78/18,217,182.18 = 8,303,912.20/x
  3. Step 3: Cross multiply
    13,206,451.78x = 18,217,182.18 × 8,303,912.20
  4. Step 4: Simplify right side
    13,206,451.78x = 151,273,881,354,124.59
  5. Step 5: Solve for x
    x = 151,273,881,354,124.59/13,206,451.78
  6. Step 6: Final answer
    x = 11,454,543.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.