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Finding the Third Proportional to 72,005,638 and 155,270,276

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Solution

The third proportional to 72,005,638 and 155,270,276 is: 334,819,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,005,638 : 155,270,276 = 155,270,276 : x
  2. Step 2: Convert to fraction form
    72,005,638/155,270,276 = 155,270,276/x
  3. Step 3: Cross multiply
    72,005,638x = 155,270,276 × 155,270,276
  4. Step 4: Simplify right side
    72,005,638x = 24,108,858,609,116,176
  5. Step 5: Solve for x
    x = 24,108,858,609,116,176/72,005,638
  6. Step 6: Final answer
    x = 334,819,040.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.