Home / 603,023,085.76-831,959,939.28-394,301,404.48

Finding the Fourth Proportional to 603,023,085.76, 831,959,939.28 and 394,301,404.48

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Solution

The fourth proportional to 603,023,085.76, 831,959,939.28 and 394,301,404.48 is: 543,997,369.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,023,085.76 : 831,959,939.28 = 394,301,404.48 : x
  2. Step 2: Convert to fraction form
    603,023,085.76/831,959,939.28 = 394,301,404.48/x
  3. Step 3: Cross multiply
    603,023,085.76x = 831,959,939.28 × 394,301,404.48
  4. Step 4: Simplify right side
    603,023,085.76x = 328,042,972,529,199,552
  5. Step 5: Solve for x
    x = 328,042,972,529,199,552/603,023,085.76
  6. Step 6: Final answer
    x = 543,997,369.71

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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.