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Finding the Third Proportional to 18,345,478 and 39,317,052

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Solution

The third proportional to 18,345,478 and 39,317,052 is: 84,262,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345,478 : 39,317,052 = 39,317,052 : x
  2. Step 2: Convert to fraction form
    18,345,478/39,317,052 = 39,317,052/x
  3. Step 3: Cross multiply
    18,345,478x = 39,317,052 × 39,317,052
  4. Step 4: Simplify right side
    18,345,478x = 1,545,830,577,970,704
  5. Step 5: Solve for x
    x = 1,545,830,577,970,704/18,345,478
  6. Step 6: Final answer
    x = 84,262,213.17

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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.