Home / 20,288,626.32-30,361,100.76-12,615,884.31

Finding the Fourth Proportional to 20,288,626.32, 30,361,100.76 and 12,615,884.31

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Solution

The fourth proportional to 20,288,626.32, 30,361,100.76 and 12,615,884.31 is: 18,879,155.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288,626.32 : 30,361,100.76 = 12,615,884.31 : x
  2. Step 2: Convert to fraction form
    20,288,626.32/30,361,100.76 = 12,615,884.31/x
  3. Step 3: Cross multiply
    20,288,626.32x = 30,361,100.76 × 12,615,884.31
  4. Step 4: Simplify right side
    20,288,626.32x = 383,032,134,712,413.12
  5. Step 5: Solve for x
    x = 383,032,134,712,413.12/20,288,626.32
  6. Step 6: Final answer
    x = 18,879,155.67

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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.