Home / 217,512,002.80-326,268,004.20-120,766,121.20

Finding the Fourth Proportional to 217,512,002.80, 326,268,004.20 and 120,766,121.20

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Solution

The fourth proportional to 217,512,002.80, 326,268,004.20 and 120,766,121.20 is: 181,149,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,512,002.80 : 326,268,004.20 = 120,766,121.20 : x
  2. Step 2: Convert to fraction form
    217,512,002.80/326,268,004.20 = 120,766,121.20/x
  3. Step 3: Cross multiply
    217,512,002.80x = 326,268,004.20 × 120,766,121.20
  4. Step 4: Simplify right side
    217,512,002.80x = 39,402,121,338,899,312
  5. Step 5: Solve for x
    x = 39,402,121,338,899,312/217,512,002.80
  6. Step 6: Final answer
    x = 181,149,181.80

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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.