Home / 193,522,072.20-290,395,082.70-72,365,771.40

Finding the Fourth Proportional to 193,522,072.20, 290,395,082.70 and 72,365,771.40

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Solution

The fourth proportional to 193,522,072.20, 290,395,082.70 and 72,365,771.40 is: 108,590,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,522,072.20 : 290,395,082.70 = 72,365,771.40 : x
  2. Step 2: Convert to fraction form
    193,522,072.20/290,395,082.70 = 72,365,771.40/x
  3. Step 3: Cross multiply
    193,522,072.20x = 290,395,082.70 × 72,365,771.40
  4. Step 4: Simplify right side
    193,522,072.20x = 21,014,664,170,352,296
  5. Step 5: Solve for x
    x = 21,014,664,170,352,296/193,522,072.20
  6. Step 6: Final answer
    x = 108,590,528.88

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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.