Home / 394,910,485.75-544,985,289.82-225,361,347.22

Finding the Fourth Proportional to 394,910,485.75, 544,985,289.82 and 225,361,347.22

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Solution

The fourth proportional to 394,910,485.75, 544,985,289.82 and 225,361,347.22 is: 311,003,692.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,910,485.75 : 544,985,289.82 = 225,361,347.22 : x
  2. Step 2: Convert to fraction form
    394,910,485.75/544,985,289.82 = 225,361,347.22/x
  3. Step 3: Cross multiply
    394,910,485.75x = 544,985,289.82 × 225,361,347.22
  4. Step 4: Simplify right side
    394,910,485.75x = 122,818,619,129,880,272
  5. Step 5: Solve for x
    x = 122,818,619,129,880,272/394,910,485.75
  6. Step 6: Final answer
    x = 311,003,692.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.