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Finding the Third Proportional to 258,605,334 and 387,528,762

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Solution

The third proportional to 258,605,334 and 387,528,762 is: 580,724,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,605,334 : 387,528,762 = 387,528,762 : x
  2. Step 2: Convert to fraction form
    258,605,334/387,528,762 = 387,528,762/x
  3. Step 3: Cross multiply
    258,605,334x = 387,528,762 × 387,528,762
  4. Step 4: Simplify right side
    258,605,334x = 150,178,541,377,252,640
  5. Step 5: Solve for x
    x = 150,178,541,377,252,640/258,605,334
  6. Step 6: Final answer
    x = 580,724,840.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.