Home / 850,828,003.70-1,276,242,005.55-728,383,997.30

Finding the Fourth Proportional to 850,828,003.70, 1,276,242,005.55 and 728,383,997.30

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Solution

The fourth proportional to 850,828,003.70, 1,276,242,005.55 and 728,383,997.30 is: 1,092,575,995.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,828,003.70 : 1,276,242,005.55 = 728,383,997.30 : x
  2. Step 2: Convert to fraction form
    850,828,003.70/1,276,242,005.55 = 728,383,997.30/x
  3. Step 3: Cross multiply
    850,828,003.70x = 1,276,242,005.55 × 728,383,997.30
  4. Step 4: Simplify right side
    850,828,003.70x = 929,594,253,524,677,632
  5. Step 5: Solve for x
    x = 929,594,253,524,677,632/850,828,003.70
  6. Step 6: Final answer
    x = 1,092,575,995.95

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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.