Home / 260,796,544.20-391,194,816.30-79,020,102.60

Finding the Fourth Proportional to 260,796,544.20, 391,194,816.30 and 79,020,102.60

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Solution

The fourth proportional to 260,796,544.20, 391,194,816.30 and 79,020,102.60 is: 118,530,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,796,544.20 : 391,194,816.30 = 79,020,102.60 : x
  2. Step 2: Convert to fraction form
    260,796,544.20/391,194,816.30 = 79,020,102.60/x
  3. Step 3: Cross multiply
    260,796,544.20x = 391,194,816.30 × 79,020,102.60
  4. Step 4: Simplify right side
    260,796,544.20x = 30,912,254,520,614,152
  5. Step 5: Solve for x
    x = 30,912,254,520,614,152/260,796,544.20
  6. Step 6: Final answer
    x = 118,530,153.90

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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.