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Finding the Third Proportional to 9,198,643.50 and 20,008,012.50

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Solution

The third proportional to 9,198,643.50 and 20,008,012.50 is: 43,519,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198,643.50 : 20,008,012.50 = 20,008,012.50 : x
  2. Step 2: Convert to fraction form
    9,198,643.50/20,008,012.50 = 20,008,012.50/x
  3. Step 3: Cross multiply
    9,198,643.50x = 20,008,012.50 × 20,008,012.50
  4. Step 4: Simplify right side
    9,198,643.50x = 400,320,564,200,156.25
  5. Step 5: Solve for x
    x = 400,320,564,200,156.25/9,198,643.50
  6. Step 6: Final answer
    x = 43,519,521.57

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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.