Home / 1,111,876,629.36-1,533,929,874.84-641,644,335.60

Finding the Fourth Proportional to 1,111,876,629.36, 1,533,929,874.84 and 641,644,335.60

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Solution

The fourth proportional to 1,111,876,629.36, 1,533,929,874.84 and 641,644,335.60 is: 885,203,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,876,629.36 : 1,533,929,874.84 = 641,644,335.60 : x
  2. Step 2: Convert to fraction form
    1,111,876,629.36/1,533,929,874.84 = 641,644,335.60/x
  3. Step 3: Cross multiply
    1,111,876,629.36x = 1,533,929,874.84 × 641,644,335.60
  4. Step 4: Simplify right side
    1,111,876,629.36x = 984,237,415,398,702,976
  5. Step 5: Solve for x
    x = 984,237,415,398,702,976/1,111,876,629.36
  6. Step 6: Final answer
    x = 885,203,798.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.