Home / 368,431,515,453.78-508,461,801,260.20-203,629,489,254.77

Finding the Fourth Proportional to 368,431,515,453.78, 508,461,801,260.20 and 203,629,489,254.77

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Solution

The fourth proportional to 368,431,515,453.78, 508,461,801,260.20 and 203,629,489,254.77 is: 281,023,236,485.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,431,515,453.78 : 508,461,801,260.20 = 203,629,489,254.77 : x
  2. Step 2: Convert to fraction form
    368,431,515,453.78/508,461,801,260.20 = 203,629,489,254.77/x
  3. Step 3: Cross multiply
    368,431,515,453.78x = 508,461,801,260.20 × 203,629,489,254.77
  4. Step 4: Simplify right side
    368,431,515,453.78x = 103,537,816,896,174,892,777,472
  5. Step 5: Solve for x
    x = 103,537,816,896,174,892,777,472/368,431,515,453.78
  6. Step 6: Final answer
    x = 281,023,236,485.76

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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.