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Finding the Third Proportional to 89,682,900 and 128,246,700

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Solution

The third proportional to 89,682,900 and 128,246,700 is: 183,392,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,682,900 : 128,246,700 = 128,246,700 : x
  2. Step 2: Convert to fraction form
    89,682,900/128,246,700 = 128,246,700/x
  3. Step 3: Cross multiply
    89,682,900x = 128,246,700 × 128,246,700
  4. Step 4: Simplify right side
    89,682,900x = 16,447,216,060,890,000
  5. Step 5: Solve for x
    x = 16,447,216,060,890,000/89,682,900
  6. Step 6: Final answer
    x = 183,392,999.79

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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.