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Finding the Third Proportional to 90,842,080 and 199,271,381

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Solution

The third proportional to 90,842,080 and 199,271,381 is: 437,122,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842,080 : 199,271,381 = 199,271,381 : x
  2. Step 2: Convert to fraction form
    90,842,080/199,271,381 = 199,271,381/x
  3. Step 3: Cross multiply
    90,842,080x = 199,271,381 × 199,271,381
  4. Step 4: Simplify right side
    90,842,080x = 39,709,083,285,647,160
  5. Step 5: Solve for x
    x = 39,709,083,285,647,160/90,842,080
  6. Step 6: Final answer
    x = 437,122,127.60

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.