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Finding the Third Proportional to 212,856,525 and 458,937,954

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Solution

The third proportional to 212,856,525 and 458,937,954 is: 989,511,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,856,525 : 458,937,954 = 458,937,954 : x
  2. Step 2: Convert to fraction form
    212,856,525/458,937,954 = 458,937,954/x
  3. Step 3: Cross multiply
    212,856,525x = 458,937,954 × 458,937,954
  4. Step 4: Simplify right side
    212,856,525x = 210,624,045,621,706,112
  5. Step 5: Solve for x
    x = 210,624,045,621,706,112/212,856,525
  6. Step 6: Final answer
    x = 989,511,811.40

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.