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Finding the Fourth Proportional to 7,978,175,220.60, 11,967,262,830.90 and 7,978,175,220.60

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Solution

The fourth proportional to 7,978,175,220.60, 11,967,262,830.90 and 7,978,175,220.60 is: 11,967,262,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,175,220.60 : 11,967,262,830.90 = 7,978,175,220.60 : x
  2. Step 2: Convert to fraction form
    7,978,175,220.60/11,967,262,830.90 = 7,978,175,220.60/x
  3. Step 3: Cross multiply
    7,978,175,220.60x = 11,967,262,830.90 × 7,978,175,220.60
  4. Step 4: Simplify right side
    7,978,175,220.60x = 95,476,919,775,893,782,528
  5. Step 5: Solve for x
    x = 95,476,919,775,893,782,528/7,978,175,220.60
  6. Step 6: Final answer
    x = 11,967,262,830.90

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1.5x scale

Why These Related Problems?

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