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Finding the Third Proportional to 121,212,447 and 181,958,638.50

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Solution

The third proportional to 121,212,447 and 181,958,638.50 is: 273,148,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,212,447 : 181,958,638.50 = 181,958,638.50 : x
  2. Step 2: Convert to fraction form
    121,212,447/181,958,638.50 = 181,958,638.50/x
  3. Step 3: Cross multiply
    121,212,447x = 181,958,638.50 × 181,958,638.50
  4. Step 4: Simplify right side
    121,212,447x = 33,108,946,124,773,684
  5. Step 5: Solve for x
    x = 33,108,946,124,773,684/121,212,447
  6. Step 6: Final answer
    x = 273,148,071.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.