Home / 38,615,729.60-57,923,594.40-20,412,891.20

Finding the Fourth Proportional to 38,615,729.60, 57,923,594.40 and 20,412,891.20

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Solution

The fourth proportional to 38,615,729.60, 57,923,594.40 and 20,412,891.20 is: 30,619,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,615,729.60 : 57,923,594.40 = 20,412,891.20 : x
  2. Step 2: Convert to fraction form
    38,615,729.60/57,923,594.40 = 20,412,891.20/x
  3. Step 3: Cross multiply
    38,615,729.60x = 57,923,594.40 × 20,412,891.20
  4. Step 4: Simplify right side
    38,615,729.60x = 1,182,388,030,400,129.25
  5. Step 5: Solve for x
    x = 1,182,388,030,400,129.25/38,615,729.60
  6. Step 6: Final answer
    x = 30,619,336.80

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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.