Home / 7,993,988.85-11,990,871.87-1,928,669.70

Finding the Fourth Proportional to 7,993,988.85, 11,990,871.87 and 1,928,669.70

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Solution

The fourth proportional to 7,993,988.85, 11,990,871.87 and 1,928,669.70 is: 2,892,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993,988.85 : 11,990,871.87 = 1,928,669.70 : x
  2. Step 2: Convert to fraction form
    7,993,988.85/11,990,871.87 = 1,928,669.70/x
  3. Step 3: Cross multiply
    7,993,988.85x = 11,990,871.87 × 1,928,669.70
  4. Step 4: Simplify right side
    7,993,988.85x = 23,126,431,252,251.34
  5. Step 5: Solve for x
    x = 23,126,431,252,251.34/7,993,988.85
  6. Step 6: Final answer
    x = 2,892,977.67

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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.