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Finding the Third Proportional to 437,478,540 and 639,608,910

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Solution

The third proportional to 437,478,540 and 639,608,910 is: 935,130,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,478,540 : 639,608,910 = 639,608,910 : x
  2. Step 2: Convert to fraction form
    437,478,540/639,608,910 = 639,608,910/x
  3. Step 3: Cross multiply
    437,478,540x = 639,608,910 × 639,608,910
  4. Step 4: Simplify right side
    437,478,540x = 409,099,557,751,388,096
  5. Step 5: Solve for x
    x = 409,099,557,751,388,096/437,478,540
  6. Step 6: Final answer
    x = 935,130,572.92

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.