Home / 8,628,541,390.20-11,915,610,813.92-8,158,464,443.12

Finding the Fourth Proportional to 8,628,541,390.20, 11,915,610,813.92 and 8,158,464,443.12

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Solution

The fourth proportional to 8,628,541,390.20, 11,915,610,813.92 and 8,158,464,443.12 is: 11,266,456,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628,541,390.20 : 11,915,610,813.92 = 8,158,464,443.12 : x
  2. Step 2: Convert to fraction form
    8,628,541,390.20/11,915,610,813.92 = 8,158,464,443.12/x
  3. Step 3: Cross multiply
    8,628,541,390.20x = 11,915,610,813.92 × 8,158,464,443.12
  4. Step 4: Simplify right side
    8,628,541,390.20x = 97,213,087,143,422,476,288
  5. Step 5: Solve for x
    x = 97,213,087,143,422,476,288/8,628,541,390.20
  6. Step 6: Final answer
    x = 11,266,456,605.73

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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.