Home / 128,824,731,821.56-193,172,446,938.24-75,059,242,771.26

Finding the Fourth Proportional to 128,824,731,821.56, 193,172,446,938.24 and 75,059,242,771.26

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Solution

The fourth proportional to 128,824,731,821.56, 193,172,446,938.24 and 75,059,242,771.26 is: 112,551,195,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,824,731,821.56 : 193,172,446,938.24 = 75,059,242,771.26 : x
  2. Step 2: Convert to fraction form
    128,824,731,821.56/193,172,446,938.24 = 75,059,242,771.26/x
  3. Step 3: Cross multiply
    128,824,731,821.56x = 193,172,446,938.24 × 75,059,242,771.26
  4. Step 4: Simplify right side
    128,824,731,821.56x = 14,499,377,591,455,695,503,360
  5. Step 5: Solve for x
    x = 14,499,377,591,455,695,503,360/128,824,731,821.56
  6. Step 6: Final answer
    x = 112,551,195,616.22

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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.