Home / 30,241,979.20-45,288,319.20-20,089,633.60

Finding the Fourth Proportional to 30,241,979.20, 45,288,319.20 and 20,089,633.60

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Solution

The fourth proportional to 30,241,979.20, 45,288,319.20 and 20,089,633.60 is: 30,084,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,241,979.20 : 45,288,319.20 = 20,089,633.60 : x
  2. Step 2: Convert to fraction form
    30,241,979.20/45,288,319.20 = 20,089,633.60/x
  3. Step 3: Cross multiply
    30,241,979.20x = 45,288,319.20 × 20,089,633.60
  4. Step 4: Simplify right side
    30,241,979.20x = 909,825,739,087,845.25
  5. Step 5: Solve for x
    x = 909,825,739,087,845.25/30,241,979.20
  6. Step 6: Final answer
    x = 30,084,860.95

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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.