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Finding the Third Proportional to 79,654,644.75 and 123,019,439.75

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Solution

The third proportional to 79,654,644.75 and 123,019,439.75 is: 189,992,468.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,654,644.75 : 123,019,439.75 = 123,019,439.75 : x
  2. Step 2: Convert to fraction form
    79,654,644.75/123,019,439.75 = 123,019,439.75/x
  3. Step 3: Cross multiply
    79,654,644.75x = 123,019,439.75 × 123,019,439.75
  4. Step 4: Simplify right side
    79,654,644.75x = 15,133,782,556,403,880
  5. Step 5: Solve for x
    x = 15,133,782,556,403,880/79,654,644.75
  6. Step 6: Final answer
    x = 189,992,468.16

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.