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Finding the Third Proportional to 72,070,542 and 155,478,474

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Solution

The third proportional to 72,070,542 and 155,478,474 is: 335,415,208.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,542 : 155,478,474 = 155,478,474 : x
  2. Step 2: Convert to fraction form
    72,070,542/155,478,474 = 155,478,474/x
  3. Step 3: Cross multiply
    72,070,542x = 155,478,474 × 155,478,474
  4. Step 4: Simplify right side
    72,070,542x = 24,173,555,877,368,676
  5. Step 5: Solve for x
    x = 24,173,555,877,368,676/72,070,542
  6. Step 6: Final answer
    x = 335,415,208.58

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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.