Home / 1,978,992,022.60-2,968,488,033.90-1,888,292,758.60

Finding the Fourth Proportional to 1,978,992,022.60, 2,968,488,033.90 and 1,888,292,758.60

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Solution

The fourth proportional to 1,978,992,022.60, 2,968,488,033.90 and 1,888,292,758.60 is: 2,832,439,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,992,022.60 : 2,968,488,033.90 = 1,888,292,758.60 : x
  2. Step 2: Convert to fraction form
    1,978,992,022.60/2,968,488,033.90 = 1,888,292,758.60/x
  3. Step 3: Cross multiply
    1,978,992,022.60x = 2,968,488,033.90 × 1,888,292,758.60
  4. Step 4: Simplify right side
    1,978,992,022.60x = 5,605,374,458,404,121,600
  5. Step 5: Solve for x
    x = 5,605,374,458,404,121,600/1,978,992,022.60
  6. Step 6: Final answer
    x = 2,832,439,137.90

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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.