Home / 128,763,958,239.48-177,694,270,914.06-71,670,043,471.80

Finding the Fourth Proportional to 128,763,958,239.48, 177,694,270,914.06 and 71,670,043,471.80

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Solution

The fourth proportional to 128,763,958,239.48, 177,694,270,914.06 and 71,670,043,471.80 is: 98,904,664,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,763,958,239.48 : 177,694,270,914.06 = 71,670,043,471.80 : x
  2. Step 2: Convert to fraction form
    128,763,958,239.48/177,694,270,914.06 = 71,670,043,471.80/x
  3. Step 3: Cross multiply
    128,763,958,239.48x = 177,694,270,914.06 × 71,670,043,471.80
  4. Step 4: Simplify right side
    128,763,958,239.48x = 12,735,356,121,100,486,443,008
  5. Step 5: Solve for x
    x = 12,735,356,121,100,486,443,008/128,763,958,239.48
  6. Step 6: Final answer
    x = 98,904,664,746.44

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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.