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Finding the Third Proportional to 55,287,522 and 81,843,372

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Solution

The third proportional to 55,287,522 and 81,843,372 is: 121,154,598.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,287,522 : 81,843,372 = 81,843,372 : x
  2. Step 2: Convert to fraction form
    55,287,522/81,843,372 = 81,843,372/x
  3. Step 3: Cross multiply
    55,287,522x = 81,843,372 × 81,843,372
  4. Step 4: Simplify right side
    55,287,522x = 6,698,337,540,330,384
  5. Step 5: Solve for x
    x = 6,698,337,540,330,384/55,287,522
  6. Step 6: Final answer
    x = 121,154,598.69

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.