Home / 7,111,958.21-10,667,964.99-1,720,599.98

Finding the Fourth Proportional to 7,111,958.21, 10,667,964.99 and 1,720,599.98

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Solution

The fourth proportional to 7,111,958.21, 10,667,964.99 and 1,720,599.98 is: 2,580,906.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111,958.21 : 10,667,964.99 = 1,720,599.98 : x
  2. Step 2: Convert to fraction form
    7,111,958.21/10,667,964.99 = 1,720,599.98/x
  3. Step 3: Cross multiply
    7,111,958.21x = 10,667,964.99 × 1,720,599.98
  4. Step 4: Simplify right side
    7,111,958.21x = 18,355,300,348,434.70
  5. Step 5: Solve for x
    x = 18,355,300,348,434.70/7,111,958.21
  6. Step 6: Final answer
    x = 2,580,906.67

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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.