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Finding the Third Proportional to 251,930,007 and 391,010,449.50

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Solution

The third proportional to 251,930,007 and 391,010,449.50 is: 606,871,620.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,930,007 : 391,010,449.50 = 391,010,449.50 : x
  2. Step 2: Convert to fraction form
    251,930,007/391,010,449.50 = 391,010,449.50/x
  3. Step 3: Cross multiply
    251,930,007x = 391,010,449.50 × 391,010,449.50
  4. Step 4: Simplify right side
    251,930,007x = 152,889,171,618,192,064
  5. Step 5: Solve for x
    x = 152,889,171,618,192,064/251,930,007
  6. Step 6: Final answer
    x = 606,871,620.57

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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.