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Finding the Third Proportional to 18,915,603,724 and 41,686,809,915

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Solution

The third proportional to 18,915,603,724 and 41,686,809,915 is: 91,870,719,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915,603,724 : 41,686,809,915 = 41,686,809,915 : x
  2. Step 2: Convert to fraction form
    18,915,603,724/41,686,809,915 = 41,686,809,915/x
  3. Step 3: Cross multiply
    18,915,603,724x = 41,686,809,915 × 41,686,809,915
  4. Step 4: Simplify right side
    18,915,603,724x = 1,737,790,120,889,342,230,528
  5. Step 5: Solve for x
    x = 1,737,790,120,889,342,230,528/18,915,603,724
  6. Step 6: Final answer
    x = 91,870,719,340.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.