Home / 89,815,072.20-134,722,608.30-80,745,145.80

Finding the Fourth Proportional to 89,815,072.20, 134,722,608.30 and 80,745,145.80

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Solution

The fourth proportional to 89,815,072.20, 134,722,608.30 and 80,745,145.80 is: 121,117,718.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,815,072.20 : 134,722,608.30 = 80,745,145.80 : x
  2. Step 2: Convert to fraction form
    89,815,072.20/134,722,608.30 = 80,745,145.80/x
  3. Step 3: Cross multiply
    89,815,072.20x = 134,722,608.30 × 80,745,145.80
  4. Step 4: Simplify right side
    89,815,072.20x = 10,878,196,649,739,790
  5. Step 5: Solve for x
    x = 10,878,196,649,739,790/89,815,072.20
  6. Step 6: Final answer
    x = 121,117,718.70

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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.