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Finding the Fourth Proportional to 1,939,140,629.10, 2,721,684,356.10 and 1,939,140,629.10

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Solution

The fourth proportional to 1,939,140,629.10, 2,721,684,356.10 and 1,939,140,629.10 is: 2,721,684,356.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,140,629.10 : 2,721,684,356.10 = 1,939,140,629.10 : x
  2. Step 2: Convert to fraction form
    1,939,140,629.10/2,721,684,356.10 = 1,939,140,629.10/x
  3. Step 3: Cross multiply
    1,939,140,629.10x = 2,721,684,356.10 × 1,939,140,629.10
  4. Step 4: Simplify right side
    1,939,140,629.10x = 5,277,728,714,499,382,272
  5. Step 5: Solve for x
    x = 5,277,728,714,499,382,272/1,939,140,629.10
  6. Step 6: Final answer
    x = 2,721,684,356.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.