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Finding the Third Proportional to 371,892,880 and 810,747,420

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Solution

The third proportional to 371,892,880 and 810,747,420 is: 1,767,475,029.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,892,880 : 810,747,420 = 810,747,420 : x
  2. Step 2: Convert to fraction form
    371,892,880/810,747,420 = 810,747,420/x
  3. Step 3: Cross multiply
    371,892,880x = 810,747,420 × 810,747,420
  4. Step 4: Simplify right side
    371,892,880x = 657,311,379,036,656,384
  5. Step 5: Solve for x
    x = 657,311,379,036,656,384/371,892,880
  6. Step 6: Final answer
    x = 1,767,475,029.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.