Home / 28,077,976.12-42,089,063.46-19,540,376.44

Finding the Fourth Proportional to 28,077,976.12, 42,089,063.46 and 19,540,376.44

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Solution

The fourth proportional to 28,077,976.12, 42,089,063.46 and 19,540,376.44 is: 29,291,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,976.12 : 42,089,063.46 = 19,540,376.44 : x
  2. Step 2: Convert to fraction form
    28,077,976.12/42,089,063.46 = 19,540,376.44/x
  3. Step 3: Cross multiply
    28,077,976.12x = 42,089,063.46 × 19,540,376.44
  4. Step 4: Simplify right side
    28,077,976.12x = 822,436,144,015,449
  5. Step 5: Solve for x
    x = 822,436,144,015,449/28,077,976.12
  6. Step 6: Final answer
    x = 29,291,147.64

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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.