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Finding the Third Proportional to 8,856,689,151.75 and 19,518,653,668.50

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Solution

The third proportional to 8,856,689,151.75 and 19,518,653,668.50 is: 43,015,830,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856,689,151.75 : 19,518,653,668.50 = 19,518,653,668.50 : x
  2. Step 2: Convert to fraction form
    8,856,689,151.75/19,518,653,668.50 = 19,518,653,668.50/x
  3. Step 3: Cross multiply
    8,856,689,151.75x = 19,518,653,668.50 × 19,518,653,668.50
  4. Step 4: Simplify right side
    8,856,689,151.75x = 380,977,841,030,848,512,000
  5. Step 5: Solve for x
    x = 380,977,841,030,848,512,000/8,856,689,151.75
  6. Step 6: Final answer
    x = 43,015,830,690.59

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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.