Home / 313,405,846.80-470,108,770.20-263,241,315.60

Finding the Fourth Proportional to 313,405,846.80, 470,108,770.20 and 263,241,315.60

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Solution

The fourth proportional to 313,405,846.80, 470,108,770.20 and 263,241,315.60 is: 394,861,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,405,846.80 : 470,108,770.20 = 263,241,315.60 : x
  2. Step 2: Convert to fraction form
    313,405,846.80/470,108,770.20 = 263,241,315.60/x
  3. Step 3: Cross multiply
    313,405,846.80x = 470,108,770.20 × 263,241,315.60
  4. Step 4: Simplify right side
    313,405,846.80x = 123,752,051,142,546,064
  5. Step 5: Solve for x
    x = 123,752,051,142,546,064/313,405,846.80
  6. Step 6: Final answer
    x = 394,861,973.40

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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.