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Finding the Third Proportional to 63,968,832 and 91,168,416

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Solution

The third proportional to 63,968,832 and 91,168,416 is: 129,933,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,968,832 : 91,168,416 = 91,168,416 : x
  2. Step 2: Convert to fraction form
    63,968,832/91,168,416 = 91,168,416/x
  3. Step 3: Cross multiply
    63,968,832x = 91,168,416 × 91,168,416
  4. Step 4: Simplify right side
    63,968,832x = 8,311,680,075,949,056
  5. Step 5: Solve for x
    x = 8,311,680,075,949,056/63,968,832
  6. Step 6: Final answer
    x = 129,933,278.69

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.