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Finding the Third Proportional to 72,005,636 and 155,270,272

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Solution

The third proportional to 72,005,636 and 155,270,272 is: 334,819,032.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,005,636 : 155,270,272 = 155,270,272 : x
  2. Step 2: Convert to fraction form
    72,005,636/155,270,272 = 155,270,272/x
  3. Step 3: Cross multiply
    72,005,636x = 155,270,272 × 155,270,272
  4. Step 4: Simplify right side
    72,005,636x = 24,108,857,366,953,984
  5. Step 5: Solve for x
    x = 24,108,857,366,953,984/72,005,636
  6. Step 6: Final answer
    x = 334,819,032.32

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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.