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Finding the Third Proportional to 30,291,515 and 65,201,973

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Solution

The third proportional to 30,291,515 and 65,201,973 is: 140,346,142.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,291,515 : 65,201,973 = 65,201,973 : x
  2. Step 2: Convert to fraction form
    30,291,515/65,201,973 = 65,201,973/x
  3. Step 3: Cross multiply
    30,291,515x = 65,201,973 × 65,201,973
  4. Step 4: Simplify right side
    30,291,515x = 4,251,297,283,092,729
  5. Step 5: Solve for x
    x = 4,251,297,283,092,729/30,291,515
  6. Step 6: Final answer
    x = 140,346,142.58

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.