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Finding the Third Proportional to 72,769,212 and 158,707,944

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Solution

The third proportional to 72,769,212 and 158,707,944 is: 346,138,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,769,212 : 158,707,944 = 158,707,944 : x
  2. Step 2: Convert to fraction form
    72,769,212/158,707,944 = 158,707,944/x
  3. Step 3: Cross multiply
    72,769,212x = 158,707,944 × 158,707,944
  4. Step 4: Simplify right side
    72,769,212x = 25,188,211,488,707,136
  5. Step 5: Solve for x
    x = 25,188,211,488,707,136/72,769,212
  6. Step 6: Final answer
    x = 346,138,302.13

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.