Home / 20,718,745.38-31,080,954.29-7,068,226.73

Finding the Fourth Proportional to 20,718,745.38, 31,080,954.29 and 7,068,226.73

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Solution

The fourth proportional to 20,718,745.38, 31,080,954.29 and 7,068,226.73 is: 10,603,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,745.38 : 31,080,954.29 = 7,068,226.73 : x
  2. Step 2: Convert to fraction form
    20,718,745.38/31,080,954.29 = 7,068,226.73/x
  3. Step 3: Cross multiply
    20,718,745.38x = 31,080,954.29 × 7,068,226.73
  4. Step 4: Simplify right side
    20,718,745.38x = 219,687,231,715,740.25
  5. Step 5: Solve for x
    x = 219,687,231,715,740.25/20,718,745.38
  6. Step 6: Final answer
    x = 10,603,307.67

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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.