Home / 270,821,817.72-405,991,806.66-117,384,172.20

Finding the Fourth Proportional to 270,821,817.72, 405,991,806.66 and 117,384,172.20

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Solution

The fourth proportional to 270,821,817.72, 405,991,806.66 and 117,384,172.20 is: 175,971,834.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,821,817.72 : 405,991,806.66 = 117,384,172.20 : x
  2. Step 2: Convert to fraction form
    270,821,817.72/405,991,806.66 = 117,384,172.20/x
  3. Step 3: Cross multiply
    270,821,817.72x = 405,991,806.66 × 117,384,172.20
  4. Step 4: Simplify right side
    270,821,817.72x = 47,657,012,144,766,552
  5. Step 5: Solve for x
    x = 47,657,012,144,766,552/270,821,817.72
  6. Step 6: Final answer
    x = 175,971,834.71

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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.