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Finding the Third Proportional to 21,666,378 and 44,089,438

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Solution

The third proportional to 21,666,378 and 44,089,438 is: 89,718,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666,378 : 44,089,438 = 44,089,438 : x
  2. Step 2: Convert to fraction form
    21,666,378/44,089,438 = 44,089,438/x
  3. Step 3: Cross multiply
    21,666,378x = 44,089,438 × 44,089,438
  4. Step 4: Simplify right side
    21,666,378x = 1,943,878,543,155,844
  5. Step 5: Solve for x
    x = 1,943,878,543,155,844/21,666,378
  6. Step 6: Final answer
    x = 89,718,666.55

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.