Home / 13,478,208.49-20,196,740.21-8,002,520.57

Finding the Fourth Proportional to 13,478,208.49, 20,196,740.21 and 8,002,520.57

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Solution

The fourth proportional to 13,478,208.49, 20,196,740.21 and 8,002,520.57 is: 11,991,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478,208.49 : 20,196,740.21 = 8,002,520.57 : x
  2. Step 2: Convert to fraction form
    13,478,208.49/20,196,740.21 = 8,002,520.57/x
  3. Step 3: Cross multiply
    13,478,208.49x = 20,196,740.21 × 8,002,520.57
  4. Step 4: Simplify right side
    13,478,208.49x = 161,624,829,047,969.25
  5. Step 5: Solve for x
    x = 161,624,829,047,969.25/13,478,208.49
  6. Step 6: Final answer
    x = 11,991,566.18

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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.