Home / 3,908,131,794.21-5,393,263,534.34-2,123,985,376.32

Finding the Fourth Proportional to 3,908,131,794.21, 5,393,263,534.34 and 2,123,985,376.32

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Solution

The fourth proportional to 3,908,131,794.21, 5,393,263,534.34 and 2,123,985,376.32 is: 2,931,122,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908,131,794.21 : 5,393,263,534.34 = 2,123,985,376.32 : x
  2. Step 2: Convert to fraction form
    3,908,131,794.21/5,393,263,534.34 = 2,123,985,376.32/x
  3. Step 3: Cross multiply
    3,908,131,794.21x = 5,393,263,534.34 × 2,123,985,376.32
  4. Step 4: Simplify right side
    3,908,131,794.21x = 11,455,212,877,578,078,208
  5. Step 5: Solve for x
    x = 11,455,212,877,578,078,208/3,908,131,794.21
  6. Step 6: Final answer
    x = 2,931,122,459.73

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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.