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Finding the Third Proportional to 8,578,321 and 13,373,900

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Solution

The third proportional to 8,578,321 and 13,373,900 is: 20,850,374.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578,321 : 13,373,900 = 13,373,900 : x
  2. Step 2: Convert to fraction form
    8,578,321/13,373,900 = 13,373,900/x
  3. Step 3: Cross multiply
    8,578,321x = 13,373,900 × 13,373,900
  4. Step 4: Simplify right side
    8,578,321x = 178,861,201,210,000
  5. Step 5: Solve for x
    x = 178,861,201,210,000/8,578,321
  6. Step 6: Final answer
    x = 20,850,374.01

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.