Home / 126,372,605.60-189,558,908.40-105,965,271.20

Finding the Fourth Proportional to 126,372,605.60, 189,558,908.40 and 105,965,271.20

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Solution

The fourth proportional to 126,372,605.60, 189,558,908.40 and 105,965,271.20 is: 158,947,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,605.60 : 189,558,908.40 = 105,965,271.20 : x
  2. Step 2: Convert to fraction form
    126,372,605.60/189,558,908.40 = 105,965,271.20/x
  3. Step 3: Cross multiply
    126,372,605.60x = 189,558,908.40 × 105,965,271.20
  4. Step 4: Simplify right side
    126,372,605.60x = 20,086,661,136,981,960
  5. Step 5: Solve for x
    x = 20,086,661,136,981,960/126,372,605.60
  6. Step 6: Final answer
    x = 158,947,906.80

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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.