Home / 207,636,334.20-311,454,501.30-198,790,356.60

Finding the Fourth Proportional to 207,636,334.20, 311,454,501.30 and 198,790,356.60

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Solution

The fourth proportional to 207,636,334.20, 311,454,501.30 and 198,790,356.60 is: 298,185,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,636,334.20 : 311,454,501.30 = 198,790,356.60 : x
  2. Step 2: Convert to fraction form
    207,636,334.20/311,454,501.30 = 198,790,356.60/x
  3. Step 3: Cross multiply
    207,636,334.20x = 311,454,501.30 × 198,790,356.60
  4. Step 4: Simplify right side
    207,636,334.20x = 61,914,151,378,102,168
  5. Step 5: Solve for x
    x = 61,914,151,378,102,168/207,636,334.20
  6. Step 6: Final answer
    x = 298,185,534.90

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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.