Home / 431,325,880.80-646,988,821.20-124,627,999.20

Finding the Fourth Proportional to 431,325,880.80, 646,988,821.20 and 124,627,999.20

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Solution

The fourth proportional to 431,325,880.80, 646,988,821.20 and 124,627,999.20 is: 186,941,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,325,880.80 : 646,988,821.20 = 124,627,999.20 : x
  2. Step 2: Convert to fraction form
    431,325,880.80/646,988,821.20 = 124,627,999.20/x
  3. Step 3: Cross multiply
    431,325,880.80x = 646,988,821.20 × 124,627,999.20
  4. Step 4: Simplify right side
    431,325,880.80x = 80,632,922,290,922,544
  5. Step 5: Solve for x
    x = 80,632,922,290,922,544/431,325,880.80
  6. Step 6: Final answer
    x = 186,941,998.80

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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.