Home / 3,908,131,793.21-5,393,263,532.96-2,123,985,375.32

Finding the Fourth Proportional to 3,908,131,793.21, 5,393,263,532.96 and 2,123,985,375.32

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Solution

The fourth proportional to 3,908,131,793.21, 5,393,263,532.96 and 2,123,985,375.32 is: 2,931,122,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908,131,793.21 : 5,393,263,532.96 = 2,123,985,375.32 : x
  2. Step 2: Convert to fraction form
    3,908,131,793.21/5,393,263,532.96 = 2,123,985,375.32/x
  3. Step 3: Cross multiply
    3,908,131,793.21x = 5,393,263,532.96 × 2,123,985,375.32
  4. Step 4: Simplify right side
    3,908,131,793.21x = 11,455,212,869,250,578,432
  5. Step 5: Solve for x
    x = 11,455,212,869,250,578,432/3,908,131,793.21
  6. Step 6: Final answer
    x = 2,931,122,458.35

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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.