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Finding the Third Proportional to 3,390,999 and 5,121,060

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Solution

The third proportional to 3,390,999 and 5,121,060 is: 7,733,784.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390,999 : 5,121,060 = 5,121,060 : x
  2. Step 2: Convert to fraction form
    3,390,999/5,121,060 = 5,121,060/x
  3. Step 3: Cross multiply
    3,390,999x = 5,121,060 × 5,121,060
  4. Step 4: Simplify right side
    3,390,999x = 26,225,255,523,600
  5. Step 5: Solve for x
    x = 26,225,255,523,600/3,390,999
  6. Step 6: Final answer
    x = 7,733,784.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.