Home / 80,999,505.72-121,511,880-26,399,423.88

Finding the Fourth Proportional to 80,999,505.72, 121,511,880 and 26,399,423.88

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Solution

The fourth proportional to 80,999,505.72, 121,511,880 and 26,399,423.88 is: 39,603,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,999,505.72 : 121,511,880 = 26,399,423.88 : x
  2. Step 2: Convert to fraction form
    80,999,505.72/121,511,880 = 26,399,423.88/x
  3. Step 3: Cross multiply
    80,999,505.72x = 121,511,880 × 26,399,423.88
  4. Step 4: Simplify right side
    80,999,505.72x = 3,207,843,626,575,694.50
  5. Step 5: Solve for x
    x = 3,207,843,626,575,694.50/80,999,505.72
  6. Step 6: Final answer
    x = 39,603,249.40

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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.