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Finding the Third Proportional to 15,445,538 and 20,953,258

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Solution

The third proportional to 15,445,538 and 20,953,258 is: 28,424,974.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445,538 : 20,953,258 = 20,953,258 : x
  2. Step 2: Convert to fraction form
    15,445,538/20,953,258 = 20,953,258/x
  3. Step 3: Cross multiply
    15,445,538x = 20,953,258 × 20,953,258
  4. Step 4: Simplify right side
    15,445,538x = 439,039,020,814,564
  5. Step 5: Solve for x
    x = 439,039,020,814,564/15,445,538
  6. Step 6: Final answer
    x = 28,424,974.31

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.