Home / 567,218,665.80-850,827,998.70-485,589,328.20

Finding the Fourth Proportional to 567,218,665.80, 850,827,998.70 and 485,589,328.20

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Solution

The fourth proportional to 567,218,665.80, 850,827,998.70 and 485,589,328.20 is: 728,383,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,218,665.80 : 850,827,998.70 = 485,589,328.20 : x
  2. Step 2: Convert to fraction form
    567,218,665.80/850,827,998.70 = 485,589,328.20/x
  3. Step 3: Cross multiply
    567,218,665.80x = 850,827,998.70 × 485,589,328.20
  4. Step 4: Simplify right side
    567,218,665.80x = 413,152,996,302,483,456
  5. Step 5: Solve for x
    x = 413,152,996,302,483,456/567,218,665.80
  6. Step 6: Final answer
    x = 728,383,992.30

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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.