Home / 20,220,571.60-30,330,857.40-11,245,123.60

Finding the Fourth Proportional to 20,220,571.60, 30,330,857.40 and 11,245,123.60

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Solution

The fourth proportional to 20,220,571.60, 30,330,857.40 and 11,245,123.60 is: 16,867,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220,571.60 : 30,330,857.40 = 11,245,123.60 : x
  2. Step 2: Convert to fraction form
    20,220,571.60/30,330,857.40 = 11,245,123.60/x
  3. Step 3: Cross multiply
    20,220,571.60x = 30,330,857.40 × 11,245,123.60
  4. Step 4: Simplify right side
    20,220,571.60x = 341,074,240,356,974.62
  5. Step 5: Solve for x
    x = 341,074,240,356,974.62/20,220,571.60
  6. Step 6: Final answer
    x = 16,867,685.40

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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.