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Finding the Fourth Proportional to 299,089,747.20, 448,634,620.80 and 169,647,340.80

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Solution

The fourth proportional to 299,089,747.20, 448,634,620.80 and 169,647,340.80 is: 254,471,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,089,747.20 : 448,634,620.80 = 169,647,340.80 : x
  2. Step 2: Convert to fraction form
    299,089,747.20/448,634,620.80 = 169,647,340.80/x
  3. Step 3: Cross multiply
    299,089,747.20x = 448,634,620.80 × 169,647,340.80
  4. Step 4: Simplify right side
    299,089,747.20x = 76,109,670,409,536,384
  5. Step 5: Solve for x
    x = 76,109,670,409,536,384/299,089,747.20
  6. Step 6: Final answer
    x = 254,471,011.20

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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.