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Finding the Third Proportional to 79,806,609 and 171,920,007

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Solution

The third proportional to 79,806,609 and 171,920,007 is: 370,351,392.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,806,609 : 171,920,007 = 171,920,007 : x
  2. Step 2: Convert to fraction form
    79,806,609/171,920,007 = 171,920,007/x
  3. Step 3: Cross multiply
    79,806,609x = 171,920,007 × 171,920,007
  4. Step 4: Simplify right side
    79,806,609x = 29,556,488,806,880,048
  5. Step 5: Solve for x
    x = 29,556,488,806,880,048/79,806,609
  6. Step 6: Final answer
    x = 370,351,392.91

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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.