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Finding the Third Proportional to 18,268,276 and 38,047,878

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Solution

The third proportional to 18,268,276 and 38,047,878 is: 79,243,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268,276 : 38,047,878 = 38,047,878 : x
  2. Step 2: Convert to fraction form
    18,268,276/38,047,878 = 38,047,878/x
  3. Step 3: Cross multiply
    18,268,276x = 38,047,878 × 38,047,878
  4. Step 4: Simplify right side
    18,268,276x = 1,447,641,020,302,884
  5. Step 5: Solve for x
    x = 1,447,641,020,302,884/18,268,276
  6. Step 6: Final answer
    x = 79,243,439.30

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.