Home / 874,003,993.51-1,206,111,435.21-477,518,469.70

Finding the Fourth Proportional to 874,003,993.51, 1,206,111,435.21 and 477,518,469.70

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Solution

The fourth proportional to 874,003,993.51, 1,206,111,435.21 and 477,518,469.70 is: 658,967,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,003,993.51 : 1,206,111,435.21 = 477,518,469.70 : x
  2. Step 2: Convert to fraction form
    874,003,993.51/1,206,111,435.21 = 477,518,469.70/x
  3. Step 3: Cross multiply
    874,003,993.51x = 1,206,111,435.21 × 477,518,469.70
  4. Step 4: Simplify right side
    874,003,993.51x = 575,940,486,823,119,360
  5. Step 5: Solve for x
    x = 575,940,486,823,119,360/874,003,993.51
  6. Step 6: Final answer
    x = 658,967,797.75

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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.