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Finding the Third Proportional to 1,953,562,620 and 4,190,716,740

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Solution

The third proportional to 1,953,562,620 and 4,190,716,740 is: 8,989,784,414.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953,562,620 : 4,190,716,740 = 4,190,716,740 : x
  2. Step 2: Convert to fraction form
    1,953,562,620/4,190,716,740 = 4,190,716,740/x
  3. Step 3: Cross multiply
    1,953,562,620x = 4,190,716,740 × 4,190,716,740
  4. Step 4: Simplify right side
    1,953,562,620x = 17,562,106,794,916,227,072
  5. Step 5: Solve for x
    x = 17,562,106,794,916,227,072/1,953,562,620
  6. Step 6: Final answer
    x = 8,989,784,414.96

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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.