Home / 6,420,209.30-9,631,739.55-2,160,257.30

Finding the Fourth Proportional to 6,420,209.30, 9,631,739.55 and 2,160,257.30

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Solution

The fourth proportional to 6,420,209.30, 9,631,739.55 and 2,160,257.30 is: 3,240,865.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,209.30 : 9,631,739.55 = 2,160,257.30 : x
  2. Step 2: Convert to fraction form
    6,420,209.30/9,631,739.55 = 2,160,257.30/x
  3. Step 3: Cross multiply
    6,420,209.30x = 9,631,739.55 × 2,160,257.30
  4. Step 4: Simplify right side
    6,420,209.30x = 20,807,035,674,586.21
  5. Step 5: Solve for x
    x = 20,807,035,674,586.21/6,420,209.30
  6. Step 6: Final answer
    x = 3,240,865.63

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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.