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Finding the Third Proportional to 402,795,252 and 621,986,352

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Solution

The third proportional to 402,795,252 and 621,986,352 is: 960,455,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,795,252 : 621,986,352 = 621,986,352 : x
  2. Step 2: Convert to fraction form
    402,795,252/621,986,352 = 621,986,352/x
  3. Step 3: Cross multiply
    402,795,252x = 621,986,352 × 621,986,352
  4. Step 4: Simplify right side
    402,795,252x = 386,867,022,074,267,904
  5. Step 5: Solve for x
    x = 386,867,022,074,267,904/402,795,252
  6. Step 6: Final answer
    x = 960,455,765.44

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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.