Home / 6,420,208.80-9,631,738.80-2,160,256.80

Finding the Fourth Proportional to 6,420,208.80, 9,631,738.80 and 2,160,256.80

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Solution

The fourth proportional to 6,420,208.80, 9,631,738.80 and 2,160,256.80 is: 3,240,864.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,208.80 : 9,631,738.80 = 2,160,256.80 : x
  2. Step 2: Convert to fraction form
    6,420,208.80/9,631,738.80 = 2,160,256.80/x
  3. Step 3: Cross multiply
    6,420,208.80x = 9,631,738.80 × 2,160,256.80
  4. Step 4: Simplify right side
    6,420,208.80x = 20,807,029,238,523.84
  5. Step 5: Solve for x
    x = 20,807,029,238,523.84/6,420,208.80
  6. Step 6: Final answer
    x = 3,240,864.88

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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.