Home / 321,845,638.80-482,768,458.20-231,818,221.20

Finding the Fourth Proportional to 321,845,638.80, 482,768,458.20 and 231,818,221.20

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Solution

The fourth proportional to 321,845,638.80, 482,768,458.20 and 231,818,221.20 is: 347,727,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,845,638.80 : 482,768,458.20 = 231,818,221.20 : x
  2. Step 2: Convert to fraction form
    321,845,638.80/482,768,458.20 = 231,818,221.20/x
  3. Step 3: Cross multiply
    321,845,638.80x = 482,768,458.20 × 231,818,221.20
  4. Step 4: Simplify right side
    321,845,638.80x = 111,914,525,231,390,544
  5. Step 5: Solve for x
    x = 111,914,525,231,390,544/321,845,638.80
  6. Step 6: Final answer
    x = 347,727,331.80

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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.