Home / 30,544,965,806.44-42,171,419,375.58-20,915,809,358.92

Finding the Fourth Proportional to 30,544,965,806.44, 42,171,419,375.58 and 20,915,809,358.92

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Solution

The fourth proportional to 30,544,965,806.44, 42,171,419,375.58 and 20,915,809,358.92 is: 28,877,078,260.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544,965,806.44 : 42,171,419,375.58 = 20,915,809,358.92 : x
  2. Step 2: Convert to fraction form
    30,544,965,806.44/42,171,419,375.58 = 20,915,809,358.92/x
  3. Step 3: Cross multiply
    30,544,965,806.44x = 42,171,419,375.58 × 20,915,809,358.92
  4. Step 4: Simplify right side
    30,544,965,806.44x = 882,049,368,054,696,378,368
  5. Step 5: Solve for x
    x = 882,049,368,054,696,378,368/30,544,965,806.44
  6. Step 6: Final answer
    x = 28,877,078,260.43

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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.