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Finding the Third Proportional to 18,211,035.09 and 37,706,385.94

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Solution

The third proportional to 18,211,035.09 and 37,706,385.94 is: 78,071,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211,035.09 : 37,706,385.94 = 37,706,385.94 : x
  2. Step 2: Convert to fraction form
    18,211,035.09/37,706,385.94 = 37,706,385.94/x
  3. Step 3: Cross multiply
    18,211,035.09x = 37,706,385.94 × 37,706,385.94
  4. Step 4: Simplify right side
    18,211,035.09x = 1,421,771,540,467,697.75
  5. Step 5: Solve for x
    x = 1,421,771,540,467,697.75/18,211,035.09
  6. Step 6: Final answer
    x = 78,071,978.51

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.