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Finding the Third Proportional to 1,988,934,700 and 3,120,051,606

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Solution

The third proportional to 1,988,934,700 and 3,120,051,606 is: 4,894,440,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,934,700 : 3,120,051,606 = 3,120,051,606 : x
  2. Step 2: Convert to fraction form
    1,988,934,700/3,120,051,606 = 3,120,051,606/x
  3. Step 3: Cross multiply
    1,988,934,700x = 3,120,051,606 × 3,120,051,606
  4. Step 4: Simplify right side
    1,988,934,700x = 9,734,722,024,103,178,240
  5. Step 5: Solve for x
    x = 9,734,722,024,103,178,240/1,988,934,700
  6. Step 6: Final answer
    x = 4,894,440,236.83

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.