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Finding the Third Proportional to 262,121,985 and 406,994,337

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Solution

The third proportional to 262,121,985 and 406,994,337 is: 631,936,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,121,985 : 406,994,337 = 406,994,337 : x
  2. Step 2: Convert to fraction form
    262,121,985/406,994,337 = 406,994,337/x
  3. Step 3: Cross multiply
    262,121,985x = 406,994,337 × 406,994,337
  4. Step 4: Simplify right side
    262,121,985x = 165,644,390,350,069,568
  5. Step 5: Solve for x
    x = 165,644,390,350,069,568/262,121,985
  6. Step 6: Final answer
    x = 631,936,273.30

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.