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Finding the Third Proportional to 628,389,444 and 1,321,898,988

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Solution

The third proportional to 628,389,444 and 1,321,898,988 is: 2,780,786,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,389,444 : 1,321,898,988 = 1,321,898,988 : x
  2. Step 2: Convert to fraction form
    628,389,444/1,321,898,988 = 1,321,898,988/x
  3. Step 3: Cross multiply
    628,389,444x = 1,321,898,988 × 1,321,898,988
  4. Step 4: Simplify right side
    628,389,444x = 1,747,416,934,475,424,256
  5. Step 5: Solve for x
    x = 1,747,416,934,475,424,256/628,389,444
  6. Step 6: Final answer
    x = 2,780,786,582.52

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.