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Finding the Third Proportional to 18,611,916.75 and 40,897,788.47

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Solution

The third proportional to 18,611,916.75 and 40,897,788.47 is: 89,868,718.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611,916.75 : 40,897,788.47 = 40,897,788.47 : x
  2. Step 2: Convert to fraction form
    18,611,916.75/40,897,788.47 = 40,897,788.47/x
  3. Step 3: Cross multiply
    18,611,916.75x = 40,897,788.47 × 40,897,788.47
  4. Step 4: Simplify right side
    18,611,916.75x = 1,672,629,101,634,783.75
  5. Step 5: Solve for x
    x = 1,672,629,101,634,783.75/18,611,916.75
  6. Step 6: Final answer
    x = 89,868,718.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.