Home / 823,609,172.80-1,235,412,767.76-210,193,464.16

Finding the Fourth Proportional to 823,609,172.80, 1,235,412,767.76 and 210,193,464.16

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Solution

The fourth proportional to 823,609,172.80, 1,235,412,767.76 and 210,193,464.16 is: 315,289,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,609,172.80 : 1,235,412,767.76 = 210,193,464.16 : x
  2. Step 2: Convert to fraction form
    823,609,172.80/1,235,412,767.76 = 210,193,464.16/x
  3. Step 3: Cross multiply
    823,609,172.80x = 1,235,412,767.76 × 210,193,464.16
  4. Step 4: Simplify right side
    823,609,172.80x = 259,675,689,322,967,968
  5. Step 5: Solve for x
    x = 259,675,689,322,967,968/823,609,172.80
  6. Step 6: Final answer
    x = 315,289,943.21

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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.