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Finding the Third Proportional to 251,407,148 and 387,871,859

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Solution

The third proportional to 251,407,148 and 387,871,859 is: 598,410,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,407,148 : 387,871,859 = 387,871,859 : x
  2. Step 2: Convert to fraction form
    251,407,148/387,871,859 = 387,871,859/x
  3. Step 3: Cross multiply
    251,407,148x = 387,871,859 × 387,871,859
  4. Step 4: Simplify right side
    251,407,148x = 150,444,579,004,115,872
  5. Step 5: Solve for x
    x = 150,444,579,004,115,872/251,407,148
  6. Step 6: Final answer
    x = 598,410,109.66

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.