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Finding the Third Proportional to 18,867,968 and 40,426,767

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Solution

The third proportional to 18,867,968 and 40,426,767 is: 86,618,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867,968 : 40,426,767 = 40,426,767 : x
  2. Step 2: Convert to fraction form
    18,867,968/40,426,767 = 40,426,767/x
  3. Step 3: Cross multiply
    18,867,968x = 40,426,767 × 40,426,767
  4. Step 4: Simplify right side
    18,867,968x = 1,634,323,490,072,289
  5. Step 5: Solve for x
    x = 1,634,323,490,072,289/18,867,968
  6. Step 6: Final answer
    x = 86,618,945.40

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.