Home / 321,361,983.75-437,546,608.89-320,341,617.03

Finding the Fourth Proportional to 321,361,983.75, 437,546,608.89 and 320,341,617.03

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Solution

The fourth proportional to 321,361,983.75, 437,546,608.89 and 320,341,617.03 is: 436,157,340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,361,983.75 : 437,546,608.89 = 320,341,617.03 : x
  2. Step 2: Convert to fraction form
    321,361,983.75/437,546,608.89 = 320,341,617.03/x
  3. Step 3: Cross multiply
    321,361,983.75x = 437,546,608.89 × 320,341,617.03
  4. Step 4: Simplify right side
    321,361,983.75x = 140,164,388,215,796,080
  5. Step 5: Solve for x
    x = 140,164,388,215,796,080/321,361,983.75
  6. Step 6: Final answer
    x = 436,157,340.64

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.