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Finding the Third Proportional to 129,515,894 and 264,234,292

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Solution

The third proportional to 129,515,894 and 264,234,292 is: 539,082,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,515,894 : 264,234,292 = 264,234,292 : x
  2. Step 2: Convert to fraction form
    129,515,894/264,234,292 = 264,234,292/x
  3. Step 3: Cross multiply
    129,515,894x = 264,234,292 × 264,234,292
  4. Step 4: Simplify right side
    129,515,894x = 69,819,761,068,741,264
  5. Step 5: Solve for x
    x = 69,819,761,068,741,264/129,515,894
  6. Step 6: Final answer
    x = 539,082,570.58

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.