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Finding the Third Proportional to 1,988,934,696 and 3,120,051,600

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Solution

The third proportional to 1,988,934,696 and 3,120,051,600 is: 4,894,440,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,934,696 : 3,120,051,600 = 3,120,051,600 : x
  2. Step 2: Convert to fraction form
    1,988,934,696/3,120,051,600 = 3,120,051,600/x
  3. Step 3: Cross multiply
    1,988,934,696x = 3,120,051,600 × 3,120,051,600
  4. Step 4: Simplify right side
    1,988,934,696x = 9,734,721,986,662,559,744
  5. Step 5: Solve for x
    x = 9,734,721,986,662,559,744/1,988,934,696
  6. Step 6: Final answer
    x = 4,894,440,227.85

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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.