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Finding the Third Proportional to 6,391,370 and 8,989,943

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Solution

The third proportional to 6,391,370 and 8,989,943 is: 12,645,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,370 : 8,989,943 = 8,989,943 : x
  2. Step 2: Convert to fraction form
    6,391,370/8,989,943 = 8,989,943/x
  3. Step 3: Cross multiply
    6,391,370x = 8,989,943 × 8,989,943
  4. Step 4: Simplify right side
    6,391,370x = 80,819,075,143,249
  5. Step 5: Solve for x
    x = 80,819,075,143,249/6,391,370
  6. Step 6: Final answer
    x = 12,645,031.53

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.