Home / 21,993,253,984.56-30,351,689,933.22-12,961,393,281.84

Finding the Fourth Proportional to 21,993,253,984.56, 30,351,689,933.22 and 12,961,393,281.84

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Solution

The fourth proportional to 21,993,253,984.56, 30,351,689,933.22 and 12,961,393,281.84 is: 17,887,311,730.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993,253,984.56 : 30,351,689,933.22 = 12,961,393,281.84 : x
  2. Step 2: Convert to fraction form
    21,993,253,984.56/30,351,689,933.22 = 12,961,393,281.84/x
  3. Step 3: Cross multiply
    21,993,253,984.56x = 30,351,689,933.22 × 12,961,393,281.84
  4. Step 4: Simplify right side
    21,993,253,984.56x = 393,400,189,992,928,477,184
  5. Step 5: Solve for x
    x = 393,400,189,992,928,477,184/21,993,253,984.56
  6. Step 6: Final answer
    x = 17,887,311,730.64

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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.