Home / 321,502,749.12-481,645,622.43-189,951,617.88

Finding the Fourth Proportional to 321,502,749.12, 481,645,622.43 and 189,951,617.88

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Solution

The fourth proportional to 321,502,749.12, 481,645,622.43 and 189,951,617.88 is: 284,567,909.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,502,749.12 : 481,645,622.43 = 189,951,617.88 : x
  2. Step 2: Convert to fraction form
    321,502,749.12/481,645,622.43 = 189,951,617.88/x
  3. Step 3: Cross multiply
    321,502,749.12x = 481,645,622.43 × 189,951,617.88
  4. Step 4: Simplify right side
    321,502,749.12x = 91,489,365,225,398,112
  5. Step 5: Solve for x
    x = 91,489,365,225,398,112/321,502,749.12
  6. Step 6: Final answer
    x = 284,567,909.53

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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.