Home / 1,142,928,843.02-1,714,563,620.92-405,936,830.60

Finding the Fourth Proportional to 1,142,928,843.02, 1,714,563,620.92 and 405,936,830.60

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Solution

The fourth proportional to 1,142,928,843.02, 1,714,563,620.92 and 405,936,830.60 is: 608,965,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,928,843.02 : 1,714,563,620.92 = 405,936,830.60 : x
  2. Step 2: Convert to fraction form
    1,142,928,843.02/1,714,563,620.92 = 405,936,830.60/x
  3. Step 3: Cross multiply
    1,142,928,843.02x = 1,714,563,620.92 × 405,936,830.60
  4. Step 4: Simplify right side
    1,142,928,843.02x = 696,004,522,138,324,736
  5. Step 5: Solve for x
    x = 696,004,522,138,324,736/1,142,928,843.02
  6. Step 6: Final answer
    x = 608,965,751.80

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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.