Home / 156,161,518,687.80-215,507,441,711.70-88,493,858,917.56

Finding the Fourth Proportional to 156,161,518,687.80, 215,507,441,711.70 and 88,493,858,917.56

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Solution

The fourth proportional to 156,161,518,687.80, 215,507,441,711.70 and 88,493,858,917.56 is: 122,124,101,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,161,518,687.80 : 215,507,441,711.70 = 88,493,858,917.56 : x
  2. Step 2: Convert to fraction form
    156,161,518,687.80/215,507,441,711.70 = 88,493,858,917.56/x
  3. Step 3: Cross multiply
    156,161,518,687.80x = 215,507,441,711.70 × 88,493,858,917.56
  4. Step 4: Simplify right side
    156,161,518,687.80x = 19,071,085,142,519,467,474,944
  5. Step 5: Solve for x
    x = 19,071,085,142,519,467,474,944/156,161,518,687.80
  6. Step 6: Final answer
    x = 122,124,101,396.88

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1.5x scale

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.