Home / 394,446,811.28-544,352,622.54-218,231,936.72

Finding the Fourth Proportional to 394,446,811.28, 544,352,622.54 and 218,231,936.72

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Solution

The fourth proportional to 394,446,811.28, 544,352,622.54 and 218,231,936.72 is: 301,168,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,446,811.28 : 544,352,622.54 = 218,231,936.72 : x
  2. Step 2: Convert to fraction form
    394,446,811.28/544,352,622.54 = 218,231,936.72/x
  3. Step 3: Cross multiply
    394,446,811.28x = 544,352,622.54 × 218,231,936.72
  4. Step 4: Simplify right side
    394,446,811.28x = 118,795,127,075,515,312
  5. Step 5: Solve for x
    x = 118,795,127,075,515,312/394,446,811.28
  6. Step 6: Final answer
    x = 301,168,937.56

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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.