Home / 13,315,954,768.17-19,946,137,115.45-7,987,167,304.42

Finding the Fourth Proportional to 13,315,954,768.17, 19,946,137,115.45 and 7,987,167,304.42

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Solution

The fourth proportional to 13,315,954,768.17, 19,946,137,115.45 and 7,987,167,304.42 is: 11,964,078,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,954,768.17 : 19,946,137,115.45 = 7,987,167,304.42 : x
  2. Step 2: Convert to fraction form
    13,315,954,768.17/19,946,137,115.45 = 7,987,167,304.42/x
  3. Step 3: Cross multiply
    13,315,954,768.17x = 19,946,137,115.45 × 7,987,167,304.42
  4. Step 4: Simplify right side
    13,315,954,768.17x = 159,313,134,217,860,808,704
  5. Step 5: Solve for x
    x = 159,313,134,217,860,808,704/13,315,954,768.17
  6. Step 6: Final answer
    x = 11,964,078,955.78

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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.