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Finding the Third Proportional to 258,087,100.50 and 394,536,768

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Solution

The third proportional to 258,087,100.50 and 394,536,768 is: 603,126,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,087,100.50 : 394,536,768 = 394,536,768 : x
  2. Step 2: Convert to fraction form
    258,087,100.50/394,536,768 = 394,536,768/x
  3. Step 3: Cross multiply
    258,087,100.50x = 394,536,768 × 394,536,768
  4. Step 4: Simplify right side
    258,087,100.50x = 155,659,261,303,885,824
  5. Step 5: Solve for x
    x = 155,659,261,303,885,824/258,087,100.50
  6. Step 6: Final answer
    x = 603,126,855.25

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.