Home / 196,620,775.20-295,002,021.60-81,687,801.60

Finding the Fourth Proportional to 196,620,775.20, 295,002,021.60 and 81,687,801.60

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Solution

The fourth proportional to 196,620,775.20, 295,002,021.60 and 81,687,801.60 is: 122,561,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,620,775.20 : 295,002,021.60 = 81,687,801.60 : x
  2. Step 2: Convert to fraction form
    196,620,775.20/295,002,021.60 = 81,687,801.60/x
  3. Step 3: Cross multiply
    196,620,775.20x = 295,002,021.60 × 81,687,801.60
  4. Step 4: Simplify right side
    196,620,775.20x = 24,098,066,612,059,716
  5. Step 5: Solve for x
    x = 24,098,066,612,059,716/196,620,775.20
  6. Step 6: Final answer
    x = 122,561,141.30

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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.