Home / 312,901,720.80-469,520,542.80-131,167,269.60

Finding the Fourth Proportional to 312,901,720.80, 469,520,542.80 and 131,167,269.60

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Solution

The fourth proportional to 312,901,720.80, 469,520,542.80 and 131,167,269.60 is: 196,821,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,901,720.80 : 469,520,542.80 = 131,167,269.60 : x
  2. Step 2: Convert to fraction form
    312,901,720.80/469,520,542.80 = 131,167,269.60/x
  3. Step 3: Cross multiply
    312,901,720.80x = 469,520,542.80 × 131,167,269.60
  4. Step 4: Simplify right side
    312,901,720.80x = 61,585,727,620,185,936
  5. Step 5: Solve for x
    x = 61,585,727,620,185,936/312,901,720.80
  6. Step 6: Final answer
    x = 196,821,313.30

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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.