Home / 137,796,209.20-206,694,313.80-68,921,455.60

Finding the Fourth Proportional to 137,796,209.20, 206,694,313.80 and 68,921,455.60

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Solution

The fourth proportional to 137,796,209.20, 206,694,313.80 and 68,921,455.60 is: 103,382,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,796,209.20 : 206,694,313.80 = 68,921,455.60 : x
  2. Step 2: Convert to fraction form
    137,796,209.20/206,694,313.80 = 68,921,455.60/x
  3. Step 3: Cross multiply
    137,796,209.20x = 206,694,313.80 × 68,921,455.60
  4. Step 4: Simplify right side
    137,796,209.20x = 14,245,672,971,339,166
  5. Step 5: Solve for x
    x = 14,245,672,971,339,166/137,796,209.20
  6. Step 6: Final answer
    x = 103,382,183.40

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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.