Home / 1,689,491,904.60-2,331,503,850.30-936,858,102.12

Finding the Fourth Proportional to 1,689,491,904.60, 2,331,503,850.30 and 936,858,102.12

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Solution

The fourth proportional to 1,689,491,904.60, 2,331,503,850.30 and 936,858,102.12 is: 1,292,866,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,491,904.60 : 2,331,503,850.30 = 936,858,102.12 : x
  2. Step 2: Convert to fraction form
    1,689,491,904.60/2,331,503,850.30 = 936,858,102.12/x
  3. Step 3: Cross multiply
    1,689,491,904.60x = 2,331,503,850.30 × 936,858,102.12
  4. Step 4: Simplify right side
    1,689,491,904.60x = 2,184,288,272,277,530,880
  5. Step 5: Solve for x
    x = 2,184,288,272,277,530,880/1,689,491,904.60
  6. Step 6: Final answer
    x = 1,292,866,965.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.