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Finding the Third Proportional to 138,484,818 and 299,950,268

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Solution

The third proportional to 138,484,818 and 299,950,268 is: 649,675,282.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,484,818 : 299,950,268 = 299,950,268 : x
  2. Step 2: Convert to fraction form
    138,484,818/299,950,268 = 299,950,268/x
  3. Step 3: Cross multiply
    138,484,818x = 299,950,268 × 299,950,268
  4. Step 4: Simplify right side
    138,484,818x = 89,970,163,273,271,824
  5. Step 5: Solve for x
    x = 89,970,163,273,271,824/138,484,818
  6. Step 6: Final answer
    x = 649,675,282.62

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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.