Home / 213,003,003.60-319,536,435.60-90,181,083.60

Finding the Fourth Proportional to 213,003,003.60, 319,536,435.60 and 90,181,083.60

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Solution

The fourth proportional to 213,003,003.60, 319,536,435.60 and 90,181,083.60 is: 135,285,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,003,003.60 : 319,536,435.60 = 90,181,083.60 : x
  2. Step 2: Convert to fraction form
    213,003,003.60/319,536,435.60 = 90,181,083.60/x
  3. Step 3: Cross multiply
    213,003,003.60x = 319,536,435.60 × 90,181,083.60
  4. Step 4: Simplify right side
    213,003,003.60x = 28,816,142,012,089,616
  5. Step 5: Solve for x
    x = 28,816,142,012,089,616/213,003,003.60
  6. Step 6: Final answer
    x = 135,285,143.99

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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.