Home / 3,120,609.40-4,680,914.10-2,220,148.60

Finding the Fourth Proportional to 3,120,609.40, 4,680,914.10 and 2,220,148.60

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Solution

The fourth proportional to 3,120,609.40, 4,680,914.10 and 2,220,148.60 is: 3,330,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,609.40 : 4,680,914.10 = 2,220,148.60 : x
  2. Step 2: Convert to fraction form
    3,120,609.40/4,680,914.10 = 2,220,148.60/x
  3. Step 3: Cross multiply
    3,120,609.40x = 4,680,914.10 × 2,220,148.60
  4. Step 4: Simplify right side
    3,120,609.40x = 10,392,324,885,835.26
  5. Step 5: Solve for x
    x = 10,392,324,885,835.26/3,120,609.40
  6. Step 6: Final answer
    x = 3,330,222.90

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Double scale
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Similar ratio
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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.