Home / 12,984,376.80-17,915,220.72-8,395,176

Finding the Fourth Proportional to 12,984,376.80, 17,915,220.72 and 8,395,176

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Solution

The fourth proportional to 12,984,376.80, 17,915,220.72 and 8,395,176 is: 11,583,261.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,984,376.80 : 17,915,220.72 = 8,395,176 : x
  2. Step 2: Convert to fraction form
    12,984,376.80/17,915,220.72 = 8,395,176/x
  3. Step 3: Cross multiply
    12,984,376.80x = 17,915,220.72 × 8,395,176
  4. Step 4: Simplify right side
    12,984,376.80x = 150,401,431,023,246.72
  5. Step 5: Solve for x
    x = 150,401,431,023,246.72/12,984,376.80
  6. Step 6: Final answer
    x = 11,583,261.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.