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Finding the Third Proportional to 1,555,083,912 and 3,427,143,459

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Solution

The third proportional to 1,555,083,912 and 3,427,143,459 is: 7,552,847,918.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,083,912 : 3,427,143,459 = 3,427,143,459 : x
  2. Step 2: Convert to fraction form
    1,555,083,912/3,427,143,459 = 3,427,143,459/x
  3. Step 3: Cross multiply
    1,555,083,912x = 3,427,143,459 × 3,427,143,459
  4. Step 4: Simplify right side
    1,555,083,912x = 11,745,312,288,566,484,992
  5. Step 5: Solve for x
    x = 11,745,312,288,566,484,992/1,555,083,912
  6. Step 6: Final answer
    x = 7,552,847,918.97

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.