Home / 994,031,998.80-1,491,047,998.20-339,721,839.60

Finding the Fourth Proportional to 994,031,998.80, 1,491,047,998.20 and 339,721,839.60

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Solution

The fourth proportional to 994,031,998.80, 1,491,047,998.20 and 339,721,839.60 is: 509,582,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,031,998.80 : 1,491,047,998.20 = 339,721,839.60 : x
  2. Step 2: Convert to fraction form
    994,031,998.80/1,491,047,998.20 = 339,721,839.60/x
  3. Step 3: Cross multiply
    994,031,998.80x = 1,491,047,998.20 × 339,721,839.60
  4. Step 4: Simplify right side
    994,031,998.80x = 506,541,568,880,401,536
  5. Step 5: Solve for x
    x = 506,541,568,880,401,536/994,031,998.80
  6. Step 6: Final answer
    x = 509,582,759.40

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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.