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Finding the Third Proportional to 68,528,148 and 149,613,921

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Solution

The third proportional to 68,528,148 and 149,613,921 is: 326,644,247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528,148 : 149,613,921 = 149,613,921 : x
  2. Step 2: Convert to fraction form
    68,528,148/149,613,921 = 149,613,921/x
  3. Step 3: Cross multiply
    68,528,148x = 149,613,921 × 149,613,921
  4. Step 4: Simplify right side
    68,528,148x = 22,384,325,356,994,240
  5. Step 5: Solve for x
    x = 22,384,325,356,994,240/68,528,148
  6. Step 6: Final answer
    x = 326,644,247.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.