Home / 18,764,575.40-28,146,863.10-6,647,720.60

Finding the Fourth Proportional to 18,764,575.40, 28,146,863.10 and 6,647,720.60

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Solution

The fourth proportional to 18,764,575.40, 28,146,863.10 and 6,647,720.60 is: 9,971,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764,575.40 : 28,146,863.10 = 6,647,720.60 : x
  2. Step 2: Convert to fraction form
    18,764,575.40/28,146,863.10 = 6,647,720.60/x
  3. Step 3: Cross multiply
    18,764,575.40x = 28,146,863.10 × 6,647,720.60
  4. Step 4: Simplify right side
    18,764,575.40x = 187,112,481,655,249.88
  5. Step 5: Solve for x
    x = 187,112,481,655,249.88/18,764,575.40
  6. Step 6: Final answer
    x = 9,971,580.90

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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.