Home / 1,990,081,383.20-2,747,193,047.76-1,285,576,948.64

Finding the Fourth Proportional to 1,990,081,383.20, 2,747,193,047.76 and 1,285,576,948.64

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Solution

The fourth proportional to 1,990,081,383.20, 2,747,193,047.76 and 1,285,576,948.64 is: 1,774,665,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,081,383.20 : 2,747,193,047.76 = 1,285,576,948.64 : x
  2. Step 2: Convert to fraction form
    1,990,081,383.20/2,747,193,047.76 = 1,285,576,948.64/x
  3. Step 3: Cross multiply
    1,990,081,383.20x = 2,747,193,047.76 × 1,285,576,948.64
  4. Step 4: Simplify right side
    1,990,081,383.20x = 3,531,728,055,664,323,072
  5. Step 5: Solve for x
    x = 3,531,728,055,664,323,072/1,990,081,383.20
  6. Step 6: Final answer
    x = 1,774,665,139.57

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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.