Home / 405,981,502.48-560,255,026.44-220,342,520.56

Finding the Fourth Proportional to 405,981,502.48, 560,255,026.44 and 220,342,520.56

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Solution

The fourth proportional to 405,981,502.48, 560,255,026.44 and 220,342,520.56 is: 304,072,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,981,502.48 : 560,255,026.44 = 220,342,520.56 : x
  2. Step 2: Convert to fraction form
    405,981,502.48/560,255,026.44 = 220,342,520.56/x
  3. Step 3: Cross multiply
    405,981,502.48x = 560,255,026.44 × 220,342,520.56
  4. Step 4: Simplify right side
    405,981,502.48x = 123,448,004,682,199,056
  5. Step 5: Solve for x
    x = 123,448,004,682,199,056/405,981,502.48
  6. Step 6: Final answer
    x = 304,072,978.52

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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.