Home / 20,116,647,938.20-30,174,971,907.30-18,157,543,835.80

Finding the Fourth Proportional to 20,116,647,938.20, 30,174,971,907.30 and 18,157,543,835.80

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Solution

The fourth proportional to 20,116,647,938.20, 30,174,971,907.30 and 18,157,543,835.80 is: 27,236,315,753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116,647,938.20 : 30,174,971,907.30 = 18,157,543,835.80 : x
  2. Step 2: Convert to fraction form
    20,116,647,938.20/30,174,971,907.30 = 18,157,543,835.80/x
  3. Step 3: Cross multiply
    20,116,647,938.20x = 30,174,971,907.30 × 18,157,543,835.80
  4. Step 4: Simplify right side
    20,116,647,938.20x = 547,903,375,150,833,270,784
  5. Step 5: Solve for x
    x = 547,903,375,150,833,270,784/20,116,647,938.20
  6. Step 6: Final answer
    x = 27,236,315,753.70

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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.