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Finding the Third Proportional to 18,018,391 and 38,871,196

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Solution

The third proportional to 18,018,391 and 38,871,196 is: 83,857,092.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018,391 : 38,871,196 = 38,871,196 : x
  2. Step 2: Convert to fraction form
    18,018,391/38,871,196 = 38,871,196/x
  3. Step 3: Cross multiply
    18,018,391x = 38,871,196 × 38,871,196
  4. Step 4: Simplify right side
    18,018,391x = 1,510,969,878,470,416
  5. Step 5: Solve for x
    x = 1,510,969,878,470,416/18,018,391
  6. Step 6: Final answer
    x = 83,857,092.37

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.