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Finding the Third Proportional to 211,729,518 and 458,633,772

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Solution

The third proportional to 211,729,518 and 458,633,772 is: 993,460,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,729,518 : 458,633,772 = 458,633,772 : x
  2. Step 2: Convert to fraction form
    211,729,518/458,633,772 = 458,633,772/x
  3. Step 3: Cross multiply
    211,729,518x = 458,633,772 × 458,633,772
  4. Step 4: Simplify right side
    211,729,518x = 210,344,936,818,947,968
  5. Step 5: Solve for x
    x = 210,344,936,818,947,968/211,729,518
  6. Step 6: Final answer
    x = 993,460,613.36

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.