Home / 28,089,067.20-42,165,093.60-21,727,521.60

Finding the Fourth Proportional to 28,089,067.20, 42,165,093.60 and 21,727,521.60

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Solution

The fourth proportional to 28,089,067.20, 42,165,093.60 and 21,727,521.60 is: 32,615,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089,067.20 : 42,165,093.60 = 21,727,521.60 : x
  2. Step 2: Convert to fraction form
    28,089,067.20/42,165,093.60 = 21,727,521.60/x
  3. Step 3: Cross multiply
    28,089,067.20x = 42,165,093.60 × 21,727,521.60
  4. Step 4: Simplify right side
    28,089,067.20x = 916,142,981,960,021.88
  5. Step 5: Solve for x
    x = 916,142,981,960,021.88/28,089,067.20
  6. Step 6: Final answer
    x = 32,615,642.79

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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.