Home / 89,738,107.20-134,500,872.60-66,992,432.40

Finding the Fourth Proportional to 89,738,107.20, 134,500,872.60 and 66,992,432.40

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Solution

The fourth proportional to 89,738,107.20, 134,500,872.60 and 66,992,432.40 is: 100,409,300.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,738,107.20 : 134,500,872.60 = 66,992,432.40 : x
  2. Step 2: Convert to fraction form
    89,738,107.20/134,500,872.60 = 66,992,432.40/x
  3. Step 3: Cross multiply
    89,738,107.20x = 134,500,872.60 × 66,992,432.40
  4. Step 4: Simplify right side
    89,738,107.20x = 9,010,540,615,396,512
  5. Step 5: Solve for x
    x = 9,010,540,615,396,512/89,738,107.20
  6. Step 6: Final answer
    x = 100,409,300.98

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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.