Home / 398,627,418.80-597,941,128.20-389,669,466.80

Finding the Fourth Proportional to 398,627,418.80, 597,941,128.20 and 389,669,466.80

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Solution

The fourth proportional to 398,627,418.80, 597,941,128.20 and 389,669,466.80 is: 584,504,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,627,418.80 : 597,941,128.20 = 389,669,466.80 : x
  2. Step 2: Convert to fraction form
    398,627,418.80/597,941,128.20 = 389,669,466.80/x
  3. Step 3: Cross multiply
    398,627,418.80x = 597,941,128.20 × 389,669,466.80
  4. Step 4: Simplify right side
    398,627,418.80x = 232,999,400,603,484,480
  5. Step 5: Solve for x
    x = 232,999,400,603,484,480/398,627,418.80
  6. Step 6: Final answer
    x = 584,504,200.20

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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.