Home / 1,189,879,297.14-1,642,073,305.77-661,265,563.26

Finding the Fourth Proportional to 1,189,879,297.14, 1,642,073,305.77 and 661,265,563.26

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Solution

The fourth proportional to 1,189,879,297.14, 1,642,073,305.77 and 661,265,563.26 is: 912,568,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,879,297.14 : 1,642,073,305.77 = 661,265,563.26 : x
  2. Step 2: Convert to fraction form
    1,189,879,297.14/1,642,073,305.77 = 661,265,563.26/x
  3. Step 3: Cross multiply
    1,189,879,297.14x = 1,642,073,305.77 × 661,265,563.26
  4. Step 4: Simplify right side
    1,189,879,297.14x = 1,085,846,529,454,209,280
  5. Step 5: Solve for x
    x = 1,085,846,529,454,209,280/1,189,879,297.14
  6. Step 6: Final answer
    x = 912,568,637.90

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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.