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Finding the Third Proportional to 127,890,039 and 281,289,246

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Solution

The third proportional to 127,890,039 and 281,289,246 is: 618,684,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,890,039 : 281,289,246 = 281,289,246 : x
  2. Step 2: Convert to fraction form
    127,890,039/281,289,246 = 281,289,246/x
  3. Step 3: Cross multiply
    127,890,039x = 281,289,246 × 281,289,246
  4. Step 4: Simplify right side
    127,890,039x = 79,123,639,915,248,512
  5. Step 5: Solve for x
    x = 79,123,639,915,248,512/127,890,039
  6. Step 6: Final answer
    x = 618,684,930.69

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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.