Home / 13,790,052.80-20,685,022.72-4,205,403.20

Finding the Fourth Proportional to 13,790,052.80, 20,685,022.72 and 4,205,403.20

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Solution

The fourth proportional to 13,790,052.80, 20,685,022.72 and 4,205,403.20 is: 6,308,087.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,052.80 : 20,685,022.72 = 4,205,403.20 : x
  2. Step 2: Convert to fraction form
    13,790,052.80/20,685,022.72 = 4,205,403.20/x
  3. Step 3: Cross multiply
    13,790,052.80x = 20,685,022.72 × 4,205,403.20
  4. Step 4: Simplify right side
    13,790,052.80x = 86,988,860,738,760.70
  5. Step 5: Solve for x
    x = 86,988,860,738,760.70/13,790,052.80
  6. Step 6: Final answer
    x = 6,308,087.58

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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.