Home / 201,211,240.80-301,816,861.20-73,610,191.20

Finding the Fourth Proportional to 201,211,240.80, 301,816,861.20 and 73,610,191.20

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Solution

The fourth proportional to 201,211,240.80, 301,816,861.20 and 73,610,191.20 is: 110,415,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,211,240.80 : 301,816,861.20 = 73,610,191.20 : x
  2. Step 2: Convert to fraction form
    201,211,240.80/301,816,861.20 = 73,610,191.20/x
  3. Step 3: Cross multiply
    201,211,240.80x = 301,816,861.20 × 73,610,191.20
  4. Step 4: Simplify right side
    201,211,240.80x = 22,216,796,860,315,860
  5. Step 5: Solve for x
    x = 22,216,796,860,315,860/201,211,240.80
  6. Step 6: Final answer
    x = 110,415,286.80

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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.