Home / 28,929,772.80-43,394,659.20-18,726,105.60

Finding the Fourth Proportional to 28,929,772.80, 43,394,659.20 and 18,726,105.60

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Solution

The fourth proportional to 28,929,772.80, 43,394,659.20 and 18,726,105.60 is: 28,089,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,929,772.80 : 43,394,659.20 = 18,726,105.60 : x
  2. Step 2: Convert to fraction form
    28,929,772.80/43,394,659.20 = 18,726,105.60/x
  3. Step 3: Cross multiply
    28,929,772.80x = 43,394,659.20 × 18,726,105.60
  4. Step 4: Simplify right side
    28,929,772.80x = 812,612,970,655,211.62
  5. Step 5: Solve for x
    x = 812,612,970,655,211.62/28,929,772.80
  6. Step 6: Final answer
    x = 28,089,158.40

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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.