Home / 13,206,450.78-18,217,180.80-8,303,911.20

Finding the Fourth Proportional to 13,206,450.78, 18,217,180.80 and 8,303,911.20

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Solution

The fourth proportional to 13,206,450.78, 18,217,180.80 and 8,303,911.20 is: 11,454,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,450.78 : 18,217,180.80 = 8,303,911.20 : x
  2. Step 2: Convert to fraction form
    13,206,450.78/18,217,180.80 = 8,303,911.20/x
  3. Step 3: Cross multiply
    13,206,450.78x = 18,217,180.80 × 8,303,911.20
  4. Step 4: Simplify right side
    13,206,450.78x = 151,273,851,677,544.97
  5. Step 5: Solve for x
    x = 151,273,851,677,544.97/13,206,450.78
  6. Step 6: Final answer
    x = 11,454,542.50

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1.5x scale

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.