Home / 12,381,616,956.12-18,571,906,669.53-3,987,336,783.84

Finding the Fourth Proportional to 12,381,616,956.12, 18,571,906,669.53 and 3,987,336,783.84

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Solution

The fourth proportional to 12,381,616,956.12, 18,571,906,669.53 and 3,987,336,783.84 is: 5,980,838,114.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,616,956.12 : 18,571,906,669.53 = 3,987,336,783.84 : x
  2. Step 2: Convert to fraction form
    12,381,616,956.12/18,571,906,669.53 = 3,987,336,783.84/x
  3. Step 3: Cross multiply
    12,381,616,956.12x = 18,571,906,669.53 × 3,987,336,783.84
  4. Step 4: Simplify right side
    12,381,616,956.12x = 74,052,446,609,460,396,032
  5. Step 5: Solve for x
    x = 74,052,446,609,460,396,032/12,381,616,956.12
  6. Step 6: Final answer
    x = 5,980,838,114.43

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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.