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Finding the Third Proportional to 118,690,434 and 253,058,256

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Solution

The third proportional to 118,690,434 and 253,058,256 is: 539,542,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,690,434 : 253,058,256 = 253,058,256 : x
  2. Step 2: Convert to fraction form
    118,690,434/253,058,256 = 253,058,256/x
  3. Step 3: Cross multiply
    118,690,434x = 253,058,256 × 253,058,256
  4. Step 4: Simplify right side
    118,690,434x = 64,038,480,929,761,536
  5. Step 5: Solve for x
    x = 64,038,480,929,761,536/118,690,434
  6. Step 6: Final answer
    x = 539,542,057.20

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.