Home / 420,031,143.60-629,857,758.60-161,160,327.60

Finding the Fourth Proportional to 420,031,143.60, 629,857,758.60 and 161,160,327.60

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Solution

The fourth proportional to 420,031,143.60, 629,857,758.60 and 161,160,327.60 is: 241,667,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,031,143.60 : 629,857,758.60 = 161,160,327.60 : x
  2. Step 2: Convert to fraction form
    420,031,143.60/629,857,758.60 = 161,160,327.60/x
  3. Step 3: Cross multiply
    420,031,143.60x = 629,857,758.60 × 161,160,327.60
  4. Step 4: Simplify right side
    420,031,143.60x = 101,508,082,717,377,712
  5. Step 5: Solve for x
    x = 101,508,082,717,377,712/420,031,143.60
  6. Step 6: Final answer
    x = 241,667,991.21

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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.