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Finding the Fourth Proportional to 298,947,202.40, 448,420,803.60 and 221,463,104.60

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Solution

The fourth proportional to 298,947,202.40, 448,420,803.60 and 221,463,104.60 is: 332,194,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,947,202.40 : 448,420,803.60 = 221,463,104.60 : x
  2. Step 2: Convert to fraction form
    298,947,202.40/448,420,803.60 = 221,463,104.60/x
  3. Step 3: Cross multiply
    298,947,202.40x = 448,420,803.60 × 221,463,104.60
  4. Step 4: Simplify right side
    298,947,202.40x = 99,308,663,332,482,864
  5. Step 5: Solve for x
    x = 99,308,663,332,482,864/298,947,202.40
  6. Step 6: Final answer
    x = 332,194,656.90

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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.