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Finding the Third Proportional to 303,879,668 and 618,498,640

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Solution

The third proportional to 303,879,668 and 618,498,640 is: 1,258,855,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,879,668 : 618,498,640 = 618,498,640 : x
  2. Step 2: Convert to fraction form
    303,879,668/618,498,640 = 618,498,640/x
  3. Step 3: Cross multiply
    303,879,668x = 618,498,640 × 618,498,640
  4. Step 4: Simplify right side
    303,879,668x = 382,540,567,681,849,600
  5. Step 5: Solve for x
    x = 382,540,567,681,849,600/303,879,668
  6. Step 6: Final answer
    x = 1,258,855,421.95

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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.