Home / 291,021,954,419.25-636,905,945,679.75

Finding the Third Proportional to 291,021,954,419.25 and 636,905,945,679.75

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Solution

The third proportional to 291,021,954,419.25 and 636,905,945,679.75 is: 1,393,878,288,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,021,954,419.25 : 636,905,945,679.75 = 636,905,945,679.75 : x
  2. Step 2: Convert to fraction form
    291,021,954,419.25/636,905,945,679.75 = 636,905,945,679.75/x
  3. Step 3: Cross multiply
    291,021,954,419.25x = 636,905,945,679.75 × 636,905,945,679.75
  4. Step 4: Simplify right side
    291,021,954,419.25x = 405,649,183,642,216,636,088,320
  5. Step 5: Solve for x
    x = 405,649,183,642,216,636,088,320/291,021,954,419.25
  6. Step 6: Final answer
    x = 1,393,878,288,157.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.