Home / 126,387,004.32-189,274,037.04-87,416,083.44

Finding the Fourth Proportional to 126,387,004.32, 189,274,037.04 and 87,416,083.44

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Solution

The fourth proportional to 126,387,004.32, 189,274,037.04 and 87,416,083.44 is: 130,912,154.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,387,004.32 : 189,274,037.04 = 87,416,083.44 : x
  2. Step 2: Convert to fraction form
    126,387,004.32/189,274,037.04 = 87,416,083.44/x
  3. Step 3: Cross multiply
    126,387,004.32x = 189,274,037.04 × 87,416,083.44
  4. Step 4: Simplify right side
    126,387,004.32x = 16,545,595,014,914,290
  5. Step 5: Solve for x
    x = 16,545,595,014,914,290/126,387,004.32
  6. Step 6: Final answer
    x = 130,912,154.33

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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.