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Finding the Third Proportional to 40,940,865 and 90,069,813

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Solution

The third proportional to 40,940,865 and 90,069,813 is: 198,153,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,940,865 : 90,069,813 = 90,069,813 : x
  2. Step 2: Convert to fraction form
    40,940,865/90,069,813 = 90,069,813/x
  3. Step 3: Cross multiply
    40,940,865x = 90,069,813 × 90,069,813
  4. Step 4: Simplify right side
    40,940,865x = 8,112,571,213,854,969
  5. Step 5: Solve for x
    x = 8,112,571,213,854,969/40,940,865
  6. Step 6: Final answer
    x = 198,153,390.60

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.