Home / 20,288,636.07-30,361,115.34-12,615,894.06

Finding the Fourth Proportional to 20,288,636.07, 30,361,115.34 and 12,615,894.06

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Solution

The fourth proportional to 20,288,636.07, 30,361,115.34 and 12,615,894.06 is: 18,879,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,288,636.07 : 30,361,115.34 = 12,615,894.06 : x
  2. Step 2: Convert to fraction form
    20,288,636.07/30,361,115.34 = 12,615,894.06/x
  3. Step 3: Cross multiply
    20,288,636.07x = 30,361,115.34 × 12,615,894.06
  4. Step 4: Simplify right side
    20,288,636.07x = 383,032,614,672,880.88
  5. Step 5: Solve for x
    x = 383,032,614,672,880.88/20,288,636.07
  6. Step 6: Final answer
    x = 18,879,170.26

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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.