Home / 28,546,631.78-39,393,298.13-15,493,610.43

Finding the Fourth Proportional to 28,546,631.78, 39,393,298.13 and 15,493,610.43

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Solution

The fourth proportional to 28,546,631.78, 39,393,298.13 and 15,493,610.43 is: 21,380,610.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546,631.78 : 39,393,298.13 = 15,493,610.43 : x
  2. Step 2: Convert to fraction form
    28,546,631.78/39,393,298.13 = 15,493,610.43/x
  3. Step 3: Cross multiply
    28,546,631.78x = 39,393,298.13 × 15,493,610.43
  4. Step 4: Simplify right side
    28,546,631.78x = 610,344,414,701,599.38
  5. Step 5: Solve for x
    x = 610,344,414,701,599.38/28,546,631.78
  6. Step 6: Final answer
    x = 21,380,610.49

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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.