Home / 431,567,999.65-647,351,999.48-189,230,903.65

Finding the Fourth Proportional to 431,567,999.65, 647,351,999.48 and 189,230,903.65

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Solution

The fourth proportional to 431,567,999.65, 647,351,999.48 and 189,230,903.65 is: 283,846,355.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,567,999.65 : 647,351,999.48 = 189,230,903.65 : x
  2. Step 2: Convert to fraction form
    431,567,999.65/647,351,999.48 = 189,230,903.65/x
  3. Step 3: Cross multiply
    431,567,999.65x = 647,351,999.48 × 189,230,903.65
  4. Step 4: Simplify right side
    431,567,999.65x = 122,499,003,841,234,736
  5. Step 5: Solve for x
    x = 122,499,003,841,234,736/431,567,999.65
  6. Step 6: Final answer
    x = 283,846,355.48

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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.