Home / 21,879,230.76-30,193,328.48-12,089,589.32

Finding the Fourth Proportional to 21,879,230.76, 30,193,328.48 and 12,089,589.32

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Solution

The fourth proportional to 21,879,230.76, 30,193,328.48 and 12,089,589.32 is: 16,683,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,879,230.76 : 30,193,328.48 = 12,089,589.32 : x
  2. Step 2: Convert to fraction form
    21,879,230.76/30,193,328.48 = 12,089,589.32/x
  3. Step 3: Cross multiply
    21,879,230.76x = 30,193,328.48 × 12,089,589.32
  4. Step 4: Simplify right side
    21,879,230.76x = 365,024,941,315,645.25
  5. Step 5: Solve for x
    x = 365,024,941,315,645.25/21,879,230.76
  6. Step 6: Final answer
    x = 16,683,627.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.