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Finding the Third Proportional to 30,338,475.88 and 66,860,899.31

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Solution

The third proportional to 30,338,475.88 and 66,860,899.31 is: 147,350,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,338,475.88 : 66,860,899.31 = 66,860,899.31 : x
  2. Step 2: Convert to fraction form
    30,338,475.88/66,860,899.31 = 66,860,899.31/x
  3. Step 3: Cross multiply
    30,338,475.88x = 66,860,899.31 × 66,860,899.31
  4. Step 4: Simplify right side
    30,338,475.88x = 4,470,379,856,876,263
  5. Step 5: Solve for x
    x = 4,470,379,856,876,263/30,338,475.88
  6. Step 6: Final answer
    x = 147,350,179.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.