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Finding the Third Proportional to 18,276,171 and 40,139,129

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Solution

The third proportional to 18,276,171 and 40,139,129 is: 88,155,756.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276,171 : 40,139,129 = 40,139,129 : x
  2. Step 2: Convert to fraction form
    18,276,171/40,139,129 = 40,139,129/x
  3. Step 3: Cross multiply
    18,276,171x = 40,139,129 × 40,139,129
  4. Step 4: Simplify right side
    18,276,171x = 1,611,149,676,878,641
  5. Step 5: Solve for x
    x = 1,611,149,676,878,641/18,276,171
  6. Step 6: Final answer
    x = 88,155,756.31

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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.