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Finding the Fourth Proportional to 1,972,078,511,090.40, 2,958,117,766,635.60 and 1,972,078,511,090.40

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Solution

The fourth proportional to 1,972,078,511,090.40, 2,958,117,766,635.60 and 1,972,078,511,090.40 is: 2,958,117,766,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,078,511,090.40 : 2,958,117,766,635.60 = 1,972,078,511,090.40 : x
  2. Step 2: Convert to fraction form
    1,972,078,511,090.40/2,958,117,766,635.60 = 1,972,078,511,090.40/x
  3. Step 3: Cross multiply
    1,972,078,511,090.40x = 2,958,117,766,635.60 × 1,972,078,511,090.40
  4. Step 4: Simplify right side
    1,972,078,511,090.40x = 5,833,640,480,856,793,466,011,648
  5. Step 5: Solve for x
    x = 5,833,640,480,856,793,466,011,648/1,972,078,511,090.40
  6. Step 6: Final answer
    x = 2,958,117,766,635.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.