Home / 1,223,965,197.92-1,689,022,676.40-667,036,258.40

Finding the Fourth Proportional to 1,223,965,197.92, 1,689,022,676.40 and 667,036,258.40

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Solution

The fourth proportional to 1,223,965,197.92, 1,689,022,676.40 and 667,036,258.40 is: 920,483,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,965,197.92 : 1,689,022,676.40 = 667,036,258.40 : x
  2. Step 2: Convert to fraction form
    1,223,965,197.92/1,689,022,676.40 = 667,036,258.40/x
  3. Step 3: Cross multiply
    1,223,965,197.92x = 1,689,022,676.40 × 667,036,258.40
  4. Step 4: Simplify right side
    1,223,965,197.92x = 1,126,639,366,418,610,048
  5. Step 5: Solve for x
    x = 1,126,639,366,418,610,048/1,223,965,197.92
  6. Step 6: Final answer
    x = 920,483,170.87

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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.