Home / 20,116,647,935.70-30,174,971,903.55-18,157,543,833.30

Finding the Fourth Proportional to 20,116,647,935.70, 30,174,971,903.55 and 18,157,543,833.30

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Solution

The fourth proportional to 20,116,647,935.70, 30,174,971,903.55 and 18,157,543,833.30 is: 27,236,315,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116,647,935.70 : 30,174,971,903.55 = 18,157,543,833.30 : x
  2. Step 2: Convert to fraction form
    20,116,647,935.70/30,174,971,903.55 = 18,157,543,833.30/x
  3. Step 3: Cross multiply
    20,116,647,935.70x = 30,174,971,903.55 × 18,157,543,833.30
  4. Step 4: Simplify right side
    20,116,647,935.70x = 547,903,375,007,305,039,872
  5. Step 5: Solve for x
    x = 547,903,375,007,305,039,872/20,116,647,935.70
  6. Step 6: Final answer
    x = 27,236,315,749.95

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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.