Home / 30,430,195,540.60-41,976,222,769.32-18,978,883,506.72

Finding the Fourth Proportional to 30,430,195,540.60, 41,976,222,769.32 and 18,978,883,506.72

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Solution

The fourth proportional to 30,430,195,540.60, 41,976,222,769.32 and 18,978,883,506.72 is: 26,179,977,743.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430,195,540.60 : 41,976,222,769.32 = 18,978,883,506.72 : x
  2. Step 2: Convert to fraction form
    30,430,195,540.60/41,976,222,769.32 = 18,978,883,506.72/x
  3. Step 3: Cross multiply
    30,430,195,540.60x = 41,976,222,769.32 × 18,978,883,506.72
  4. Step 4: Simplify right side
    30,430,195,540.60x = 796,661,841,991,276,691,456
  5. Step 5: Solve for x
    x = 796,661,841,991,276,691,456/30,430,195,540.60
  6. Step 6: Final answer
    x = 26,179,977,743.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.