Home / 16,815,121.20-25,222,681.80-13,455,889.20

Finding the Fourth Proportional to 16,815,121.20, 25,222,681.80 and 13,455,889.20

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Solution

The fourth proportional to 16,815,121.20, 25,222,681.80 and 13,455,889.20 is: 20,183,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815,121.20 : 25,222,681.80 = 13,455,889.20 : x
  2. Step 2: Convert to fraction form
    16,815,121.20/25,222,681.80 = 13,455,889.20/x
  3. Step 3: Cross multiply
    16,815,121.20x = 25,222,681.80 × 13,455,889.20
  4. Step 4: Simplify right side
    16,815,121.20x = 339,393,611,627,656.56
  5. Step 5: Solve for x
    x = 339,393,611,627,656.56/16,815,121.20
  6. Step 6: Final answer
    x = 20,183,833.80

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1.5x scale

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.