Home / 252,828,989.40-379,089,519.30-99,291,091.80

Finding the Fourth Proportional to 252,828,989.40, 379,089,519.30 and 99,291,091.80

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Solution

The fourth proportional to 252,828,989.40, 379,089,519.30 and 99,291,091.80 is: 148,876,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,828,989.40 : 379,089,519.30 = 99,291,091.80 : x
  2. Step 2: Convert to fraction form
    252,828,989.40/379,089,519.30 = 99,291,091.80/x
  3. Step 3: Cross multiply
    252,828,989.40x = 379,089,519.30 × 99,291,091.80
  4. Step 4: Simplify right side
    252,828,989.40x = 37,640,212,261,234,168
  5. Step 5: Solve for x
    x = 37,640,212,261,234,168/252,828,989.40
  6. Step 6: Final answer
    x = 148,876,172.59

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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.