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Finding the Third Proportional to 64,721,900 and 139,048,852

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Solution

The third proportional to 64,721,900 and 139,048,852 is: 298,733,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,721,900 : 139,048,852 = 139,048,852 : x
  2. Step 2: Convert to fraction form
    64,721,900/139,048,852 = 139,048,852/x
  3. Step 3: Cross multiply
    64,721,900x = 139,048,852 × 139,048,852
  4. Step 4: Simplify right side
    64,721,900x = 19,334,583,242,517,904
  5. Step 5: Solve for x
    x = 19,334,583,242,517,904/64,721,900
  6. Step 6: Final answer
    x = 298,733,245.51

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.