Home / 8,321,203.70-12,481,805.55-4,290,125.30

Finding the Fourth Proportional to 8,321,203.70, 12,481,805.55 and 4,290,125.30

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Solution

The fourth proportional to 8,321,203.70, 12,481,805.55 and 4,290,125.30 is: 6,435,187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,203.70 : 12,481,805.55 = 4,290,125.30 : x
  2. Step 2: Convert to fraction form
    8,321,203.70/12,481,805.55 = 4,290,125.30/x
  3. Step 3: Cross multiply
    8,321,203.70x = 12,481,805.55 × 4,290,125.30
  4. Step 4: Simplify right side
    8,321,203.70x = 53,548,509,779,735.41
  5. Step 5: Solve for x
    x = 53,548,509,779,735.41/8,321,203.70
  6. Step 6: Final answer
    x = 6,435,187.95

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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.