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Finding the Third Proportional to 20,278,512 and 45,090,840

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Solution

The third proportional to 20,278,512 and 45,090,840 is: 100,262,970.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,512 : 45,090,840 = 45,090,840 : x
  2. Step 2: Convert to fraction form
    20,278,512/45,090,840 = 45,090,840/x
  3. Step 3: Cross multiply
    20,278,512x = 45,090,840 × 45,090,840
  4. Step 4: Simplify right side
    20,278,512x = 2,033,183,851,905,600
  5. Step 5: Solve for x
    x = 2,033,183,851,905,600/20,278,512
  6. Step 6: Final answer
    x = 100,262,970.57

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.