Home / 13,481,520.09-20,222,427.83-3,896,981.70

Finding the Fourth Proportional to 13,481,520.09, 20,222,427.83 and 3,896,981.70

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Solution

The fourth proportional to 13,481,520.09, 20,222,427.83 and 3,896,981.70 is: 5,845,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481,520.09 : 20,222,427.83 = 3,896,981.70 : x
  2. Step 2: Convert to fraction form
    13,481,520.09/20,222,427.83 = 3,896,981.70/x
  3. Step 3: Cross multiply
    13,481,520.09x = 20,222,427.83 × 3,896,981.70
  4. Step 4: Simplify right side
    13,481,520.09x = 78,806,431,163,595.80
  5. Step 5: Solve for x
    x = 78,806,431,163,595.80/13,481,520.09
  6. Step 6: Final answer
    x = 5,845,515.24

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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.