Home / 13,780,078.60-20,656,222.86-8,666,163.32

Finding the Fourth Proportional to 13,780,078.60, 20,656,222.86 and 8,666,163.32

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Solution

The fourth proportional to 13,780,078.60, 20,656,222.86 and 8,666,163.32 is: 12,990,506.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780,078.60 : 20,656,222.86 = 8,666,163.32 : x
  2. Step 2: Convert to fraction form
    13,780,078.60/20,656,222.86 = 8,666,163.32/x
  3. Step 3: Cross multiply
    13,780,078.60x = 20,656,222.86 × 8,666,163.32
  4. Step 4: Simplify right side
    13,780,078.60x = 179,010,200,879,077.50
  5. Step 5: Solve for x
    x = 179,010,200,879,077.50/13,780,078.60
  6. Step 6: Final answer
    x = 12,990,506.52

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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.