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Finding the Third Proportional to 18,403,056 and 38,709,888

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Solution

The third proportional to 18,403,056 and 38,709,888 is: 81,424,271.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403,056 : 38,709,888 = 38,709,888 : x
  2. Step 2: Convert to fraction form
    18,403,056/38,709,888 = 38,709,888/x
  3. Step 3: Cross multiply
    18,403,056x = 38,709,888 × 38,709,888
  4. Step 4: Simplify right side
    18,403,056x = 1,498,455,428,972,544
  5. Step 5: Solve for x
    x = 1,498,455,428,972,544/18,403,056
  6. Step 6: Final answer
    x = 81,424,271.54

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.