Home / 13,429,217.36-20,143,800.88-4,207,895.78

Finding the Fourth Proportional to 13,429,217.36, 20,143,800.88 and 4,207,895.78

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Solution

The fourth proportional to 13,429,217.36, 20,143,800.88 and 4,207,895.78 is: 6,311,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429,217.36 : 20,143,800.88 = 4,207,895.78 : x
  2. Step 2: Convert to fraction form
    13,429,217.36/20,143,800.88 = 4,207,895.78/x
  3. Step 3: Cross multiply
    13,429,217.36x = 20,143,800.88 × 4,207,895.78
  4. Step 4: Simplify right side
    13,429,217.36x = 84,763,014,770,178.05
  5. Step 5: Solve for x
    x = 84,763,014,770,178.05/13,429,217.36
  6. Step 6: Final answer
    x = 6,311,835.79

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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.