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Finding the Third Proportional to 19,939,840 and 43,378,880

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Solution

The third proportional to 19,939,840 and 43,378,880 is: 94,370,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939,840 : 43,378,880 = 43,378,880 : x
  2. Step 2: Convert to fraction form
    19,939,840/43,378,880 = 43,378,880/x
  3. Step 3: Cross multiply
    19,939,840x = 43,378,880 × 43,378,880
  4. Step 4: Simplify right side
    19,939,840x = 1,881,727,230,054,400
  5. Step 5: Solve for x
    x = 1,881,727,230,054,400/19,939,840
  6. Step 6: Final answer
    x = 94,370,227.15

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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.