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Finding the Third Proportional to 18,273,886 and 40,632,642

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Solution

The third proportional to 18,273,886 and 40,632,642 is: 90,348,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,273,886 : 40,632,642 = 40,632,642 : x
  2. Step 2: Convert to fraction form
    18,273,886/40,632,642 = 40,632,642/x
  3. Step 3: Cross multiply
    18,273,886x = 40,632,642 × 40,632,642
  4. Step 4: Simplify right side
    18,273,886x = 1,651,011,595,900,164
  5. Step 5: Solve for x
    x = 1,651,011,595,900,164/18,273,886
  6. Step 6: Final answer
    x = 90,348,139.19

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.