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Finding the Fourth Proportional to 532,235,231.70, 798,352,847.55 and 388,907,999.70

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Solution

The fourth proportional to 532,235,231.70, 798,352,847.55 and 388,907,999.70 is: 583,361,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,235,231.70 : 798,352,847.55 = 388,907,999.70 : x
  2. Step 2: Convert to fraction form
    532,235,231.70/798,352,847.55 = 388,907,999.70/x
  3. Step 3: Cross multiply
    532,235,231.70x = 798,352,847.55 × 388,907,999.70
  4. Step 4: Simplify right side
    532,235,231.70x = 310,485,808,995,469,504
  5. Step 5: Solve for x
    x = 310,485,808,995,469,504/532,235,231.70
  6. Step 6: Final answer
    x = 583,361,999.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.