Home / 511,076,518.75-766,743,789.26-142,611,161.52

Finding the Fourth Proportional to 511,076,518.75, 766,743,789.26 and 142,611,161.52

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Solution

The fourth proportional to 511,076,518.75, 766,743,789.26 and 142,611,161.52 is: 213,952,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,076,518.75 : 766,743,789.26 = 142,611,161.52 : x
  2. Step 2: Convert to fraction form
    511,076,518.75/766,743,789.26 = 142,611,161.52/x
  3. Step 3: Cross multiply
    511,076,518.75x = 766,743,789.26 × 142,611,161.52
  4. Step 4: Simplify right side
    511,076,518.75x = 109,346,222,373,901,648
  5. Step 5: Solve for x
    x = 109,346,222,373,901,648/511,076,518.75
  6. Step 6: Final answer
    x = 213,952,741.64

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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.