Home / 128,824,731,820.56-193,172,446,936.74-75,059,242,770.26

Finding the Fourth Proportional to 128,824,731,820.56, 193,172,446,936.74 and 75,059,242,770.26

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Solution

The fourth proportional to 128,824,731,820.56, 193,172,446,936.74 and 75,059,242,770.26 is: 112,551,195,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,824,731,820.56 : 193,172,446,936.74 = 75,059,242,770.26 : x
  2. Step 2: Convert to fraction form
    128,824,731,820.56/193,172,446,936.74 = 75,059,242,770.26/x
  3. Step 3: Cross multiply
    128,824,731,820.56x = 193,172,446,936.74 × 75,059,242,770.26
  4. Step 4: Simplify right side
    128,824,731,820.56x = 14,499,377,591,149,932,838,912
  5. Step 5: Solve for x
    x = 14,499,377,591,149,932,838,912/128,824,731,820.56
  6. Step 6: Final answer
    x = 112,551,195,614.72

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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.