Home / 431,505,101.20-647,341,632.60-124,807,219.60

Finding the Fourth Proportional to 431,505,101.20, 647,341,632.60 and 124,807,219.60

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Solution

The fourth proportional to 431,505,101.20, 647,341,632.60 and 124,807,219.60 is: 187,235,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,505,101.20 : 647,341,632.60 = 124,807,219.60 : x
  2. Step 2: Convert to fraction form
    431,505,101.20/647,341,632.60 = 124,807,219.60/x
  3. Step 3: Cross multiply
    431,505,101.20x = 647,341,632.60 × 124,807,219.60
  4. Step 4: Simplify right side
    431,505,101.20x = 80,792,909,296,130,720
  5. Step 5: Solve for x
    x = 80,792,909,296,130,720/431,505,101.20
  6. Step 6: Final answer
    x = 187,235,119.75

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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.