Home / 91,002,069.20-136,503,103.80-60,391,067.60

Finding the Fourth Proportional to 91,002,069.20, 136,503,103.80 and 60,391,067.60

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Solution

The fourth proportional to 91,002,069.20, 136,503,103.80 and 60,391,067.60 is: 90,586,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,002,069.20 : 136,503,103.80 = 60,391,067.60 : x
  2. Step 2: Convert to fraction form
    91,002,069.20/136,503,103.80 = 60,391,067.60/x
  3. Step 3: Cross multiply
    91,002,069.20x = 136,503,103.80 × 60,391,067.60
  4. Step 4: Simplify right side
    91,002,069.20x = 8,243,568,169,195,618
  5. Step 5: Solve for x
    x = 8,243,568,169,195,618/91,002,069.20
  6. Step 6: Final answer
    x = 90,586,601.40

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Similar ratio
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1.5x scale

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.