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Finding the Third Proportional to 428,587,489 and 930,238,274

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Solution

The third proportional to 428,587,489 and 930,238,274 is: 2,019,058,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,587,489 : 930,238,274 = 930,238,274 : x
  2. Step 2: Convert to fraction form
    428,587,489/930,238,274 = 930,238,274/x
  3. Step 3: Cross multiply
    428,587,489x = 930,238,274 × 930,238,274
  4. Step 4: Simplify right side
    428,587,489x = 865,343,246,414,499,072
  5. Step 5: Solve for x
    x = 865,343,246,414,499,072/428,587,489
  6. Step 6: Final answer
    x = 2,019,058,578.76

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.