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Finding the Third Proportional to 131,692,396 and 289,455,328

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Solution

The third proportional to 131,692,396 and 289,455,328 is: 636,212,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,692,396 : 289,455,328 = 289,455,328 : x
  2. Step 2: Convert to fraction form
    131,692,396/289,455,328 = 289,455,328/x
  3. Step 3: Cross multiply
    131,692,396x = 289,455,328 × 289,455,328
  4. Step 4: Simplify right side
    131,692,396x = 83,784,386,907,587,584
  5. Step 5: Solve for x
    x = 83,784,386,907,587,584/131,692,396
  6. Step 6: Final answer
    x = 636,212,791.72

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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.