Home / 1,288,679,682.20-1,778,320,620.60-752,881,032.08

Finding the Fourth Proportional to 1,288,679,682.20, 1,778,320,620.60 and 752,881,032.08

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Solution

The fourth proportional to 1,288,679,682.20, 1,778,320,620.60 and 752,881,032.08 is: 1,038,942,324.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,679,682.20 : 1,778,320,620.60 = 752,881,032.08 : x
  2. Step 2: Convert to fraction form
    1,288,679,682.20/1,778,320,620.60 = 752,881,032.08/x
  3. Step 3: Cross multiply
    1,288,679,682.20x = 1,778,320,620.60 × 752,881,032.08
  4. Step 4: Simplify right side
    1,288,679,682.20x = 1,338,863,864,206,474,240
  5. Step 5: Solve for x
    x = 1,338,863,864,206,474,240/1,288,679,682.20
  6. Step 6: Final answer
    x = 1,038,942,324.23

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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.