Home / 13,408,220.80-20,112,331.20-8,033,449.60

Finding the Fourth Proportional to 13,408,220.80, 20,112,331.20 and 8,033,449.60

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Solution

The fourth proportional to 13,408,220.80, 20,112,331.20 and 8,033,449.60 is: 12,050,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408,220.80 : 20,112,331.20 = 8,033,449.60 : x
  2. Step 2: Convert to fraction form
    13,408,220.80/20,112,331.20 = 8,033,449.60/x
  3. Step 3: Cross multiply
    13,408,220.80x = 20,112,331.20 × 8,033,449.60
  4. Step 4: Simplify right side
    13,408,220.80x = 161,571,399,033,707.50
  5. Step 5: Solve for x
    x = 161,571,399,033,707.50/13,408,220.80
  6. Step 6: Final answer
    x = 12,050,174.40

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1.5x scale

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.