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Finding the Third Proportional to 89,405,872 and 136,707,288

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Solution

The third proportional to 89,405,872 and 136,707,288 is: 209,034,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,405,872 : 136,707,288 = 136,707,288 : x
  2. Step 2: Convert to fraction form
    89,405,872/136,707,288 = 136,707,288/x
  3. Step 3: Cross multiply
    89,405,872x = 136,707,288 × 136,707,288
  4. Step 4: Simplify right side
    89,405,872x = 18,688,882,592,314,944
  5. Step 5: Solve for x
    x = 18,688,882,592,314,944/89,405,872
  6. Step 6: Final answer
    x = 209,034,173.87

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.