Home / 121,879,208.25-263,637,699.75

Finding the Third Proportional to 121,879,208.25 and 263,637,699.75

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Solution

The third proportional to 121,879,208.25 and 263,637,699.75 is: 570,276,405.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,879,208.25 : 263,637,699.75 = 263,637,699.75 : x
  2. Step 2: Convert to fraction form
    121,879,208.25/263,637,699.75 = 263,637,699.75/x
  3. Step 3: Cross multiply
    121,879,208.25x = 263,637,699.75 × 263,637,699.75
  4. Step 4: Simplify right side
    121,879,208.25x = 69,504,836,729,471,152
  5. Step 5: Solve for x
    x = 69,504,836,729,471,152/121,879,208.25
  6. Step 6: Final answer
    x = 570,276,405.04

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.