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Finding the Third Proportional to 290,858,731.88 and 622,028,247.75

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Solution

The third proportional to 290,858,731.88 and 622,028,247.75 is: 1,330,264,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,858,731.88 : 622,028,247.75 = 622,028,247.75 : x
  2. Step 2: Convert to fraction form
    290,858,731.88/622,028,247.75 = 622,028,247.75/x
  3. Step 3: Cross multiply
    290,858,731.88x = 622,028,247.75 × 622,028,247.75
  4. Step 4: Simplify right side
    290,858,731.88x = 386,919,140,998,935,360
  5. Step 5: Solve for x
    x = 386,919,140,998,935,360/290,858,731.88
  6. Step 6: Final answer
    x = 1,330,264,828.24

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.