Home / 825,540,982.57-1,139,212,172.37-449,199,048.25

Finding the Fourth Proportional to 825,540,982.57, 1,139,212,172.37 and 449,199,048.25

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Solution

The fourth proportional to 825,540,982.57, 1,139,212,172.37 and 449,199,048.25 is: 619,875,977.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,540,982.57 : 1,139,212,172.37 = 449,199,048.25 : x
  2. Step 2: Convert to fraction form
    825,540,982.57/1,139,212,172.37 = 449,199,048.25/x
  3. Step 3: Cross multiply
    825,540,982.57x = 1,139,212,172.37 × 449,199,048.25
  4. Step 4: Simplify right side
    825,540,982.57x = 511,733,023,583,418,880
  5. Step 5: Solve for x
    x = 511,733,023,583,418,880/825,540,982.57
  6. Step 6: Final answer
    x = 619,875,977.56

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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.