Home / 21,339,901.37-29,449,777.64-13,078,367.22

Finding the Fourth Proportional to 21,339,901.37, 29,449,777.64 and 13,078,367.22

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Solution

The fourth proportional to 21,339,901.37, 29,449,777.64 and 13,078,367.22 is: 18,048,584.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339,901.37 : 29,449,777.64 = 13,078,367.22 : x
  2. Step 2: Convert to fraction form
    21,339,901.37/29,449,777.64 = 13,078,367.22/x
  3. Step 3: Cross multiply
    21,339,901.37x = 29,449,777.64 × 13,078,367.22
  4. Step 4: Simplify right side
    21,339,901.37x = 385,155,006,568,309.81
  5. Step 5: Solve for x
    x = 385,155,006,568,309.81/21,339,901.37
  6. Step 6: Final answer
    x = 18,048,584.19

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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.