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Finding the Third Proportional to 8,639,648 and 20,000,912

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Solution

The third proportional to 8,639,648 and 20,000,912 is: 46,302,405.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639,648 : 20,000,912 = 20,000,912 : x
  2. Step 2: Convert to fraction form
    8,639,648/20,000,912 = 20,000,912/x
  3. Step 3: Cross multiply
    8,639,648x = 20,000,912 × 20,000,912
  4. Step 4: Simplify right side
    8,639,648x = 400,036,480,831,744
  5. Step 5: Solve for x
    x = 400,036,480,831,744/8,639,648
  6. Step 6: Final answer
    x = 46,302,405.01

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.