Home / 505,485,025.20-758,227,537.80-423,855,687.60

Finding the Fourth Proportional to 505,485,025.20, 758,227,537.80 and 423,855,687.60

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Solution

The fourth proportional to 505,485,025.20, 758,227,537.80 and 423,855,687.60 is: 635,783,531.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,485,025.20 : 758,227,537.80 = 423,855,687.60 : x
  2. Step 2: Convert to fraction form
    505,485,025.20/758,227,537.80 = 423,855,687.60/x
  3. Step 3: Cross multiply
    505,485,025.20x = 758,227,537.80 × 423,855,687.60
  4. Step 4: Simplify right side
    505,485,025.20x = 321,379,054,391,473,984
  5. Step 5: Solve for x
    x = 321,379,054,391,473,984/505,485,025.20
  6. Step 6: Final answer
    x = 635,783,531.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.