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Finding the Third Proportional to 15,271,760.25 and 21,362,177.25

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Solution

The third proportional to 15,271,760.25 and 21,362,177.25 is: 29,881,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271,760.25 : 21,362,177.25 = 21,362,177.25 : x
  2. Step 2: Convert to fraction form
    15,271,760.25/21,362,177.25 = 21,362,177.25/x
  3. Step 3: Cross multiply
    15,271,760.25x = 21,362,177.25 × 21,362,177.25
  4. Step 4: Simplify right side
    15,271,760.25x = 456,342,616,860,417.56
  5. Step 5: Solve for x
    x = 456,342,616,860,417.56/15,271,760.25
  6. Step 6: Final answer
    x = 29,881,468.11

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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.