Home / 13,478,209.49-20,196,741.71-8,002,521.57

Finding the Fourth Proportional to 13,478,209.49, 20,196,741.71 and 8,002,521.57

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Solution

The fourth proportional to 13,478,209.49, 20,196,741.71 and 8,002,521.57 is: 11,991,567.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478,209.49 : 20,196,741.71 = 8,002,521.57 : x
  2. Step 2: Convert to fraction form
    13,478,209.49/20,196,741.71 = 8,002,521.57/x
  3. Step 3: Cross multiply
    13,478,209.49x = 20,196,741.71 × 8,002,521.57
  4. Step 4: Simplify right side
    13,478,209.49x = 161,624,861,177,993.69
  5. Step 5: Solve for x
    x = 161,624,861,177,993.69/13,478,209.49
  6. Step 6: Final answer
    x = 11,991,567.67

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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.