Home / 629,858,130.40-944,787,195.60-398,575,007.20

Finding the Fourth Proportional to 629,858,130.40, 944,787,195.60 and 398,575,007.20

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Solution

The fourth proportional to 629,858,130.40, 944,787,195.60 and 398,575,007.20 is: 597,862,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,858,130.40 : 944,787,195.60 = 398,575,007.20 : x
  2. Step 2: Convert to fraction form
    629,858,130.40/944,787,195.60 = 398,575,007.20/x
  3. Step 3: Cross multiply
    629,858,130.40x = 944,787,195.60 × 398,575,007.20
  4. Step 4: Simplify right side
    629,858,130.40x = 376,568,563,288,737,792
  5. Step 5: Solve for x
    x = 376,568,563,288,737,792/629,858,130.40
  6. Step 6: Final answer
    x = 597,862,510.80

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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.