Home / 28,106,961,249.22-42,158,890,003.83-20,551,488,481.64

Finding the Fourth Proportional to 28,106,961,249.22, 42,158,890,003.83 and 20,551,488,481.64

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Solution

The fourth proportional to 28,106,961,249.22, 42,158,890,003.83 and 20,551,488,481.64 is: 30,826,098,012.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106,961,249.22 : 42,158,890,003.83 = 20,551,488,481.64 : x
  2. Step 2: Convert to fraction form
    28,106,961,249.22/42,158,890,003.83 = 20,551,488,481.64/x
  3. Step 3: Cross multiply
    28,106,961,249.22x = 42,158,890,003.83 × 20,551,488,481.64
  4. Step 4: Simplify right side
    28,106,961,249.22x = 866,427,942,312,481,128,448
  5. Step 5: Solve for x
    x = 866,427,942,312,481,128,448/28,106,961,249.22
  6. Step 6: Final answer
    x = 30,826,098,012.88

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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.