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Finding the Third Proportional to 297,252,749.50 and 621,608,990

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Solution

The third proportional to 297,252,749.50 and 621,608,990 is: 1,299,896,256.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,252,749.50 : 621,608,990 = 621,608,990 : x
  2. Step 2: Convert to fraction form
    297,252,749.50/621,608,990 = 621,608,990/x
  3. Step 3: Cross multiply
    297,252,749.50x = 621,608,990 × 621,608,990
  4. Step 4: Simplify right side
    297,252,749.50x = 386,397,736,448,820,096
  5. Step 5: Solve for x
    x = 386,397,736,448,820,096/297,252,749.50
  6. Step 6: Final answer
    x = 1,299,896,256.97

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.