Home / 28,515,826.21-39,351,803.64-15,463,063.22

Finding the Fourth Proportional to 28,515,826.21, 39,351,803.64 and 15,463,063.22

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Solution

The fourth proportional to 28,515,826.21, 39,351,803.64 and 15,463,063.22 is: 21,339,007.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515,826.21 : 39,351,803.64 = 15,463,063.22 : x
  2. Step 2: Convert to fraction form
    28,515,826.21/39,351,803.64 = 15,463,063.22/x
  3. Step 3: Cross multiply
    28,515,826.21x = 39,351,803.64 × 15,463,063.22
  4. Step 4: Simplify right side
    28,515,826.21x = 608,499,427,251,600.50
  5. Step 5: Solve for x
    x = 608,499,427,251,600.50/28,515,826.21
  6. Step 6: Final answer
    x = 21,339,007.42

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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.