Home / 13,619,475.96-20,393,172.18-8,220,910.20

Finding the Fourth Proportional to 13,619,475.96, 20,393,172.18 and 8,220,910.20

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Solution

The fourth proportional to 13,619,475.96, 20,393,172.18 and 8,220,910.20 is: 12,309,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619,475.96 : 20,393,172.18 = 8,220,910.20 : x
  2. Step 2: Convert to fraction form
    13,619,475.96/20,393,172.18 = 8,220,910.20/x
  3. Step 3: Cross multiply
    13,619,475.96x = 20,393,172.18 × 8,220,910.20
  4. Step 4: Simplify right side
    13,619,475.96x = 167,650,437,184,918.25
  5. Step 5: Solve for x
    x = 167,650,437,184,918.25/13,619,475.96
  6. Step 6: Final answer
    x = 12,309,609.98

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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.