Home / 685,129,350.87-945,476,120.16-371,863,564.02

Finding the Fourth Proportional to 685,129,350.87, 945,476,120.16 and 371,863,564.02

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Solution

The fourth proportional to 685,129,350.87, 945,476,120.16 and 371,863,564.02 is: 513,170,424.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,129,350.87 : 945,476,120.16 = 371,863,564.02 : x
  2. Step 2: Convert to fraction form
    685,129,350.87/945,476,120.16 = 371,863,564.02/x
  3. Step 3: Cross multiply
    685,129,350.87x = 945,476,120.16 × 371,863,564.02
  4. Step 4: Simplify right side
    685,129,350.87x = 351,588,119,738,499,328
  5. Step 5: Solve for x
    x = 351,588,119,738,499,328/685,129,350.87
  6. Step 6: Final answer
    x = 513,170,424.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.