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Finding the Third Proportional to 122,872,388 and 263,979,370

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Solution

The third proportional to 122,872,388 and 263,979,370 is: 567,133,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,872,388 : 263,979,370 = 263,979,370 : x
  2. Step 2: Convert to fraction form
    122,872,388/263,979,370 = 263,979,370/x
  3. Step 3: Cross multiply
    122,872,388x = 263,979,370 × 263,979,370
  4. Step 4: Simplify right side
    122,872,388x = 69,685,107,785,596,896
  5. Step 5: Solve for x
    x = 69,685,107,785,596,896/122,872,388
  6. Step 6: Final answer
    x = 567,133,990.96

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.