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Finding the Third Proportional to 18,365,078 and 40,036,905

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Solution

The third proportional to 18,365,078 and 40,036,905 is: 87,282,709.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365,078 : 40,036,905 = 40,036,905 : x
  2. Step 2: Convert to fraction form
    18,365,078/40,036,905 = 40,036,905/x
  3. Step 3: Cross multiply
    18,365,078x = 40,036,905 × 40,036,905
  4. Step 4: Simplify right side
    18,365,078x = 1,602,953,761,979,025
  5. Step 5: Solve for x
    x = 1,602,953,761,979,025/18,365,078
  6. Step 6: Final answer
    x = 87,282,709.17

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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.