Home / 850,827,999.70-1,276,241,999.55-728,383,993.30

Finding the Fourth Proportional to 850,827,999.70, 1,276,241,999.55 and 728,383,993.30

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Solution

The fourth proportional to 850,827,999.70, 1,276,241,999.55 and 728,383,993.30 is: 1,092,575,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,827,999.70 : 1,276,241,999.55 = 728,383,993.30 : x
  2. Step 2: Convert to fraction form
    850,827,999.70/1,276,241,999.55 = 728,383,993.30/x
  3. Step 3: Cross multiply
    850,827,999.70x = 1,276,241,999.55 × 728,383,993.30
  4. Step 4: Simplify right side
    850,827,999.70x = 929,594,244,049,405,696
  5. Step 5: Solve for x
    x = 929,594,244,049,405,696/850,827,999.70
  6. Step 6: Final answer
    x = 1,092,575,989.95

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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.