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Finding the Third Proportional to 403,251,643.50 and 622,785,920

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Solution

The third proportional to 403,251,643.50 and 622,785,920 is: 961,836,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,251,643.50 : 622,785,920 = 622,785,920 : x
  2. Step 2: Convert to fraction form
    403,251,643.50/622,785,920 = 622,785,920/x
  3. Step 3: Cross multiply
    403,251,643.50x = 622,785,920 × 622,785,920
  4. Step 4: Simplify right side
    403,251,643.50x = 387,862,302,150,246,400
  5. Step 5: Solve for x
    x = 387,862,302,150,246,400/403,251,643.50
  6. Step 6: Final answer
    x = 961,836,878.79

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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.