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Finding the Third Proportional to 290,515,030 and 622,475,840

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Solution

The third proportional to 290,515,030 and 622,475,840 is: 1,333,756,024.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,515,030 : 622,475,840 = 622,475,840 : x
  2. Step 2: Convert to fraction form
    290,515,030/622,475,840 = 622,475,840/x
  3. Step 3: Cross multiply
    290,515,030x = 622,475,840 × 622,475,840
  4. Step 4: Simplify right side
    290,515,030x = 387,476,171,383,705,600
  5. Step 5: Solve for x
    x = 387,476,171,383,705,600/290,515,030
  6. Step 6: Final answer
    x = 1,333,756,024.20

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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.