Home / 638,708,128,288-1,374,288,138,360

Finding the Third Proportional to 638,708,128,288 and 1,374,288,138,360

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Solution

The third proportional to 638,708,128,288 and 1,374,288,138,360 is: 2,957,012,449,958.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,708,128,288 : 1,374,288,138,360 = 1,374,288,138,360 : x
  2. Step 2: Convert to fraction form
    638,708,128,288/1,374,288,138,360 = 1,374,288,138,360/x
  3. Step 3: Cross multiply
    638,708,128,288x = 1,374,288,138,360 × 1,374,288,138,360
  4. Step 4: Simplify right side
    638,708,128,288x = 1,888,667,887,236,994,528,444,416
  5. Step 5: Solve for x
    x = 1,888,667,887,236,994,528,444,416/638,708,128,288
  6. Step 6: Final answer
    x = 2,957,012,449,958.01

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.