Home / 755,515,762.20-1,042,601,153.72-421,002,383.73

Finding the Fourth Proportional to 755,515,762.20, 1,042,601,153.72 and 421,002,383.73

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Solution

The fourth proportional to 755,515,762.20, 1,042,601,153.72 and 421,002,383.73 is: 580,977,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,515,762.20 : 1,042,601,153.72 = 421,002,383.73 : x
  2. Step 2: Convert to fraction form
    755,515,762.20/1,042,601,153.72 = 421,002,383.73/x
  3. Step 3: Cross multiply
    755,515,762.20x = 1,042,601,153.72 × 421,002,383.73
  4. Step 4: Simplify right side
    755,515,762.20x = 438,937,570,993,663,168
  5. Step 5: Solve for x
    x = 438,937,570,993,663,168/755,515,762.20
  6. Step 6: Final answer
    x = 580,977,383.87

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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.