Home / 1,398,815,725.92-1,930,534,977.42-796,132,890.48

Finding the Fourth Proportional to 1,398,815,725.92, 1,930,534,977.42 and 796,132,890.48

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Solution

The fourth proportional to 1,398,815,725.92, 1,930,534,977.42 and 796,132,890.48 is: 1,098,759,731.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,815,725.92 : 1,930,534,977.42 = 796,132,890.48 : x
  2. Step 2: Convert to fraction form
    1,398,815,725.92/1,930,534,977.42 = 796,132,890.48/x
  3. Step 3: Cross multiply
    1,398,815,725.92x = 1,930,534,977.42 × 796,132,890.48
  4. Step 4: Simplify right side
    1,398,815,725.92x = 1,536,962,391,746,126,336
  5. Step 5: Solve for x
    x = 1,536,962,391,746,126,336/1,398,815,725.92
  6. Step 6: Final answer
    x = 1,098,759,731.73

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Double scale
Find fourth proportional to 1,398,815,726.92, 1,930,534,978.80 and 796,132,891.48
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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.