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Finding the Fourth Proportional to 441,879,999.92, 662,069,912.88 and 266,634,787.20

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Solution

The fourth proportional to 441,879,999.92, 662,069,912.88 and 266,634,787.20 is: 399,499,570.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,879,999.92 : 662,069,912.88 = 266,634,787.20 : x
  2. Step 2: Convert to fraction form
    441,879,999.92/662,069,912.88 = 266,634,787.20/x
  3. Step 3: Cross multiply
    441,879,999.92x = 662,069,912.88 × 266,634,787.20
  4. Step 4: Simplify right side
    441,879,999.92x = 176,530,870,332,281,344
  5. Step 5: Solve for x
    x = 176,530,870,332,281,344/441,879,999.92
  6. Step 6: Final answer
    x = 399,499,570.84

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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.