Home / 149,205,918.38-321,086,659.50

Finding the Third Proportional to 149,205,918.38 and 321,086,659.50

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Solution

The third proportional to 149,205,918.38 and 321,086,659.50 is: 690,968,857.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,205,918.38 : 321,086,659.50 = 321,086,659.50 : x
  2. Step 2: Convert to fraction form
    149,205,918.38/321,086,659.50 = 321,086,659.50/x
  3. Step 3: Cross multiply
    149,205,918.38x = 321,086,659.50 × 321,086,659.50
  4. Step 4: Simplify right side
    149,205,918.38x = 103,096,642,908,868,944
  5. Step 5: Solve for x
    x = 103,096,642,908,868,944/149,205,918.38
  6. Step 6: Final answer
    x = 690,968,857.21

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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.