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Finding the Third Proportional to 15,271,902 and 21,362,403.38

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Solution

The third proportional to 15,271,902 and 21,362,403.38 is: 29,881,823.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271,902 : 21,362,403.38 = 21,362,403.38 : x
  2. Step 2: Convert to fraction form
    15,271,902/21,362,403.38 = 21,362,403.38/x
  3. Step 3: Cross multiply
    15,271,902x = 21,362,403.38 × 21,362,403.38
  4. Step 4: Simplify right side
    15,271,902x = 456,352,277,956,211.38
  5. Step 5: Solve for x
    x = 456,352,277,956,211.38/15,271,902
  6. Step 6: Final answer
    x = 29,881,823.36

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.