Home / 18,009,195,819.75-39,118,609,919.25

Finding the Third Proportional to 18,009,195,819.75 and 39,118,609,919.25

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Solution

The third proportional to 18,009,195,819.75 and 39,118,609,919.25 is: 84,971,347,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009,195,819.75 : 39,118,609,919.25 = 39,118,609,919.25 : x
  2. Step 2: Convert to fraction form
    18,009,195,819.75/39,118,609,919.25 = 39,118,609,919.25/x
  3. Step 3: Cross multiply
    18,009,195,819.75x = 39,118,609,919.25 × 39,118,609,919.25
  4. Step 4: Simplify right side
    18,009,195,819.75x = 1,530,265,642,014,444,617,728
  5. Step 5: Solve for x
    x = 1,530,265,642,014,444,617,728/18,009,195,819.75
  6. Step 6: Final answer
    x = 84,971,347,823.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.