Home / 13,418,866.80-20,131,653.60-4,321,821.60

Finding the Fourth Proportional to 13,418,866.80, 20,131,653.60 and 4,321,821.60

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Solution

The fourth proportional to 13,418,866.80, 20,131,653.60 and 4,321,821.60 is: 6,483,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418,866.80 : 20,131,653.60 = 4,321,821.60 : x
  2. Step 2: Convert to fraction form
    13,418,866.80/20,131,653.60 = 4,321,821.60/x
  3. Step 3: Cross multiply
    13,418,866.80x = 20,131,653.60 × 4,321,821.60
  4. Step 4: Simplify right side
    13,418,866.80x = 87,005,415,372,197.77
  5. Step 5: Solve for x
    x = 87,005,415,372,197.77/13,418,866.80
  6. Step 6: Final answer
    x = 6,483,812.43

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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.