Home / 264,135,999.20-396,203,998.80-82,382,885.60

Finding the Fourth Proportional to 264,135,999.20, 396,203,998.80 and 82,382,885.60

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Solution

The fourth proportional to 264,135,999.20, 396,203,998.80 and 82,382,885.60 is: 123,574,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,135,999.20 : 396,203,998.80 = 82,382,885.60 : x
  2. Step 2: Convert to fraction form
    264,135,999.20/396,203,998.80 = 82,382,885.60/x
  3. Step 3: Cross multiply
    264,135,999.20x = 396,203,998.80 × 82,382,885.60
  4. Step 4: Simplify right side
    264,135,999.20x = 32,640,428,707,402,936
  5. Step 5: Solve for x
    x = 32,640,428,707,402,936/264,135,999.20
  6. Step 6: Final answer
    x = 123,574,328.40

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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.