Home / 431,481,401.12-647,682,683.40-185,959,202.04

Finding the Fourth Proportional to 431,481,401.12, 647,682,683.40 and 185,959,202.04

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Solution

The fourth proportional to 431,481,401.12, 647,682,683.40 and 185,959,202.04 is: 279,137,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,481,401.12 : 647,682,683.40 = 185,959,202.04 : x
  2. Step 2: Convert to fraction form
    431,481,401.12/647,682,683.40 = 185,959,202.04/x
  3. Step 3: Cross multiply
    431,481,401.12x = 647,682,683.40 × 185,959,202.04
  4. Step 4: Simplify right side
    431,481,401.12x = 120,442,554,980,189,952
  5. Step 5: Solve for x
    x = 120,442,554,980,189,952/431,481,401.12
  6. Step 6: Final answer
    x = 279,137,303.87

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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.