Home / 20,220,548.10-30,330,822.15-11,245,100.10

Finding the Fourth Proportional to 20,220,548.10, 30,330,822.15 and 11,245,100.10

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Solution

The fourth proportional to 20,220,548.10, 30,330,822.15 and 11,245,100.10 is: 16,867,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,548.10 : 30,330,822.15 = 11,245,100.10 : x
  2. Step 2: Convert to fraction form
    20,220,548.10/30,330,822.15 = 11,245,100.10/x
  3. Step 3: Cross multiply
    20,220,548.10x = 30,330,822.15 × 11,245,100.10
  4. Step 4: Simplify right side
    20,220,548.10x = 341,073,131,192,047.19
  5. Step 5: Solve for x
    x = 341,073,131,192,047.19/20,220,548.10
  6. Step 6: Final answer
    x = 16,867,650.15

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Double scale
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Similar ratio
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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.