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Finding the Third Proportional to 1,515,149,140 and 3,540,072,054

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Solution

The third proportional to 1,515,149,140 and 3,540,072,054 is: 8,271,205,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,149,140 : 3,540,072,054 = 3,540,072,054 : x
  2. Step 2: Convert to fraction form
    1,515,149,140/3,540,072,054 = 3,540,072,054/x
  3. Step 3: Cross multiply
    1,515,149,140x = 3,540,072,054 × 3,540,072,054
  4. Step 4: Simplify right side
    1,515,149,140x = 12,532,110,147,511,779,328
  5. Step 5: Solve for x
    x = 12,532,110,147,511,779,328/1,515,149,140
  6. Step 6: Final answer
    x = 8,271,205,663.30

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These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.