Home / 260,723,976.60-391,085,964.90-131,281,570.20

Finding the Fourth Proportional to 260,723,976.60, 391,085,964.90 and 131,281,570.20

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Solution

The fourth proportional to 260,723,976.60, 391,085,964.90 and 131,281,570.20 is: 196,922,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,723,976.60 : 391,085,964.90 = 131,281,570.20 : x
  2. Step 2: Convert to fraction form
    260,723,976.60/391,085,964.90 = 131,281,570.20/x
  3. Step 3: Cross multiply
    260,723,976.60x = 391,085,964.90 × 131,281,570.20
  4. Step 4: Simplify right side
    260,723,976.60x = 51,342,379,555,254,088
  5. Step 5: Solve for x
    x = 51,342,379,555,254,088/260,723,976.60
  6. Step 6: Final answer
    x = 196,922,355.30

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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.