Home / 313,405,340.80-470,108,011.20-263,240,809.60

Finding the Fourth Proportional to 313,405,340.80, 470,108,011.20 and 263,240,809.60

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Solution

The fourth proportional to 313,405,340.80, 470,108,011.20 and 263,240,809.60 is: 394,861,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,405,340.80 : 470,108,011.20 = 263,240,809.60 : x
  2. Step 2: Convert to fraction form
    313,405,340.80/470,108,011.20 = 263,240,809.60/x
  3. Step 3: Cross multiply
    313,405,340.80x = 470,108,011.20 × 263,240,809.60
  4. Step 4: Simplify right side
    313,405,340.80x = 123,751,613,467,733,856
  5. Step 5: Solve for x
    x = 123,751,613,467,733,856/313,405,340.80
  6. Step 6: Final answer
    x = 394,861,214.40

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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.