Home / 494,805,921.48-682,750,242.54-285,981,509.52

Finding the Fourth Proportional to 494,805,921.48, 682,750,242.54 and 285,981,509.52

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Solution

The fourth proportional to 494,805,921.48, 682,750,242.54 and 285,981,509.52 is: 394,607,130.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,805,921.48 : 682,750,242.54 = 285,981,509.52 : x
  2. Step 2: Convert to fraction form
    494,805,921.48/682,750,242.54 = 285,981,509.52/x
  3. Step 3: Cross multiply
    494,805,921.48x = 682,750,242.54 × 285,981,509.52
  4. Step 4: Simplify right side
    494,805,921.48x = 195,253,944,986,735,296
  5. Step 5: Solve for x
    x = 195,253,944,986,735,296/494,805,921.48
  6. Step 6: Final answer
    x = 394,607,130.82

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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.