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Finding the Third Proportional to 1,808,561,966 and 3,878,804,806

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Solution

The third proportional to 1,808,561,966 and 3,878,804,806 is: 8,318,833,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808,561,966 : 3,878,804,806 = 3,878,804,806 : x
  2. Step 2: Convert to fraction form
    1,808,561,966/3,878,804,806 = 3,878,804,806/x
  3. Step 3: Cross multiply
    1,808,561,966x = 3,878,804,806 × 3,878,804,806
  4. Step 4: Simplify right side
    1,808,561,966x = 15,045,126,723,048,697,856
  5. Step 5: Solve for x
    x = 15,045,126,723,048,697,856/1,808,561,966
  6. Step 6: Final answer
    x = 8,318,833,971.90

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.