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Finding the Third Proportional to 251,721,918 and 553,397,292

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Solution

The third proportional to 251,721,918 and 553,397,292 is: 1,216,614,608.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,721,918 : 553,397,292 = 553,397,292 : x
  2. Step 2: Convert to fraction form
    251,721,918/553,397,292 = 553,397,292/x
  3. Step 3: Cross multiply
    251,721,918x = 553,397,292 × 553,397,292
  4. Step 4: Simplify right side
    251,721,918x = 306,248,562,792,933,248
  5. Step 5: Solve for x
    x = 306,248,562,792,933,248/251,721,918
  6. Step 6: Final answer
    x = 1,216,614,608.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.