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Finding the Third Proportional to 60,505,728 and 90,803,520

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Solution

The third proportional to 60,505,728 and 90,803,520 is: 136,272,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,505,728 : 90,803,520 = 90,803,520 : x
  2. Step 2: Convert to fraction form
    60,505,728/90,803,520 = 90,803,520/x
  3. Step 3: Cross multiply
    60,505,728x = 90,803,520 × 90,803,520
  4. Step 4: Simplify right side
    60,505,728x = 8,245,279,244,390,400
  5. Step 5: Solve for x
    x = 8,245,279,244,390,400/60,505,728
  6. Step 6: Final answer
    x = 136,272,705.36

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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.