Home / 868,653,665.91-1,199,319,286.01-667,352,021.82

Finding the Fourth Proportional to 868,653,665.91, 1,199,319,286.01 and 667,352,021.82

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Solution

The fourth proportional to 868,653,665.91, 1,199,319,286.01 and 667,352,021.82 is: 921,389,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,653,665.91 : 1,199,319,286.01 = 667,352,021.82 : x
  2. Step 2: Convert to fraction form
    868,653,665.91/1,199,319,286.01 = 667,352,021.82/x
  3. Step 3: Cross multiply
    868,653,665.91x = 1,199,319,286.01 × 667,352,021.82
  4. Step 4: Simplify right side
    868,653,665.91x = 800,368,150,334,386,176
  5. Step 5: Solve for x
    x = 800,368,150,334,386,176/868,653,665.91
  6. Step 6: Final answer
    x = 921,389,250.68

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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.