Home / 2,147,067.22-3,221,128.14-1,068,088.90

Finding the Fourth Proportional to 2,147,067.22, 3,221,128.14 and 1,068,088.90

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Solution

The fourth proportional to 2,147,067.22, 3,221,128.14 and 1,068,088.90 is: 1,602,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,067.22 : 3,221,128.14 = 1,068,088.90 : x
  2. Step 2: Convert to fraction form
    2,147,067.22/3,221,128.14 = 1,068,088.90/x
  3. Step 3: Cross multiply
    2,147,067.22x = 3,221,128.14 × 1,068,088.90
  4. Step 4: Simplify right side
    2,147,067.22x = 3,440,451,211,811.65
  5. Step 5: Solve for x
    x = 3,440,451,211,811.65/2,147,067.22
  6. Step 6: Final answer
    x = 1,602,395.67

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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.