Home / 121,638,678.75-251,900,516.25

Finding the Third Proportional to 121,638,678.75 and 251,900,516.25

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Solution

The third proportional to 121,638,678.75 and 251,900,516.25 is: 521,658,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,638,678.75 : 251,900,516.25 = 251,900,516.25 : x
  2. Step 2: Convert to fraction form
    121,638,678.75/251,900,516.25 = 251,900,516.25/x
  3. Step 3: Cross multiply
    121,638,678.75x = 251,900,516.25 × 251,900,516.25
  4. Step 4: Simplify right side
    121,638,678.75x = 63,453,870,087,016,512
  5. Step 5: Solve for x
    x = 63,453,870,087,016,512/121,638,678.75
  6. Step 6: Final answer
    x = 521,658,659.39

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.