Home / 420,029,629.60-629,855,487.60-161,158,813.60

Finding the Fourth Proportional to 420,029,629.60, 629,855,487.60 and 161,158,813.60

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Solution

The fourth proportional to 420,029,629.60, 629,855,487.60 and 161,158,813.60 is: 241,665,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,029,629.60 : 629,855,487.60 = 161,158,813.60 : x
  2. Step 2: Convert to fraction form
    420,029,629.60/629,855,487.60 = 161,158,813.60/x
  3. Step 3: Cross multiply
    420,029,629.60x = 629,855,487.60 × 161,158,813.60
  4. Step 4: Simplify right side
    420,029,629.60x = 101,506,763,121,065,504
  5. Step 5: Solve for x
    x = 101,506,763,121,065,504/420,029,629.60
  6. Step 6: Final answer
    x = 241,665,720.62

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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.