Home / 1,991,735,791.15-2,987,398,952.19-663,620,383.89

Finding the Fourth Proportional to 1,991,735,791.15, 2,987,398,952.19 and 663,620,383.89

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Solution

The fourth proportional to 1,991,735,791.15, 2,987,398,952.19 and 663,620,383.89 is: 995,362,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,735,791.15 : 2,987,398,952.19 = 663,620,383.89 : x
  2. Step 2: Convert to fraction form
    1,991,735,791.15/2,987,398,952.19 = 663,620,383.89/x
  3. Step 3: Cross multiply
    1,991,735,791.15x = 2,987,398,952.19 × 663,620,383.89
  4. Step 4: Simplify right side
    1,991,735,791.15x = 1,982,498,839,490,105,088
  5. Step 5: Solve for x
    x = 1,982,498,839,490,105,088/1,991,735,791.15
  6. Step 6: Final answer
    x = 995,362,360.96

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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.