Home / 149,229,661.88-321,134,139.75

Finding the Third Proportional to 149,229,661.88 and 321,134,139.75

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Solution

The third proportional to 149,229,661.88 and 321,134,139.75 is: 691,063,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,229,661.88 : 321,134,139.75 = 321,134,139.75 : x
  2. Step 2: Convert to fraction form
    149,229,661.88/321,134,139.75 = 321,134,139.75/x
  3. Step 3: Cross multiply
    149,229,661.88x = 321,134,139.75 × 321,134,139.75
  4. Step 4: Simplify right side
    149,229,661.88x = 103,127,135,712,972,528
  5. Step 5: Solve for x
    x = 103,127,135,712,972,528/149,229,661.88
  6. Step 6: Final answer
    x = 691,063,253.89

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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.