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Finding the Third Proportional to 1,993,364,021 and 4,293,428,386

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Solution

The third proportional to 1,993,364,021 and 4,293,428,386 is: 9,247,446,583.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,364,021 : 4,293,428,386 = 4,293,428,386 : x
  2. Step 2: Convert to fraction form
    1,993,364,021/4,293,428,386 = 4,293,428,386/x
  3. Step 3: Cross multiply
    1,993,364,021x = 4,293,428,386 × 4,293,428,386
  4. Step 4: Simplify right side
    1,993,364,021x = 18,433,527,305,710,565,376
  5. Step 5: Solve for x
    x = 18,433,527,305,710,565,376/1,993,364,021
  6. Step 6: Final answer
    x = 9,247,446,583.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.