Home / 342,360,821.20-472,418,074.88-191,661,729.04

Finding the Fourth Proportional to 342,360,821.20, 472,418,074.88 and 191,661,729.04

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Solution

The fourth proportional to 342,360,821.20, 472,418,074.88 and 191,661,729.04 is: 264,470,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,360,821.20 : 472,418,074.88 = 191,661,729.04 : x
  2. Step 2: Convert to fraction form
    342,360,821.20/472,418,074.88 = 191,661,729.04/x
  3. Step 3: Cross multiply
    342,360,821.20x = 472,418,074.88 × 191,661,729.04
  4. Step 4: Simplify right side
    342,360,821.20x = 90,544,465,061,248,992
  5. Step 5: Solve for x
    x = 90,544,465,061,248,992/342,360,821.20
  6. Step 6: Final answer
    x = 264,470,872.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.