Home / 13,261,201.80-19,880,138.70-8,987,512.20

Finding the Fourth Proportional to 13,261,201.80, 19,880,138.70 and 8,987,512.20

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Solution

The fourth proportional to 13,261,201.80, 19,880,138.70 and 8,987,512.20 is: 13,473,363.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261,201.80 : 19,880,138.70 = 8,987,512.20 : x
  2. Step 2: Convert to fraction form
    13,261,201.80/19,880,138.70 = 8,987,512.20/x
  3. Step 3: Cross multiply
    13,261,201.80x = 19,880,138.70 × 8,987,512.20
  4. Step 4: Simplify right side
    13,261,201.80x = 178,672,989,103,942.12
  5. Step 5: Solve for x
    x = 178,672,989,103,942.12/13,261,201.80
  6. Step 6: Final answer
    x = 13,473,363.26

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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.