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Finding the Fourth Proportional to 515,466,993.01, 711,367,874.85 and 303,782,757.79

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Solution

The fourth proportional to 515,466,993.01, 711,367,874.85 and 303,782,757.79 is: 419,234,010.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,466,993.01 : 711,367,874.85 = 303,782,757.79 : x
  2. Step 2: Convert to fraction form
    515,466,993.01/711,367,874.85 = 303,782,757.79/x
  3. Step 3: Cross multiply
    515,466,993.01x = 711,367,874.85 × 303,782,757.79
  4. Step 4: Simplify right side
    515,466,993.01x = 216,101,294,825,144,608
  5. Step 5: Solve for x
    x = 216,101,294,825,144,608/515,466,993.01
  6. Step 6: Final answer
    x = 419,234,010.63

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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.