Home / 13,315,954,769.17-19,946,137,116.94-7,987,167,305.42

Finding the Fourth Proportional to 13,315,954,769.17, 19,946,137,116.94 and 7,987,167,305.42

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Solution

The fourth proportional to 13,315,954,769.17, 19,946,137,116.94 and 7,987,167,305.42 is: 11,964,078,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,954,769.17 : 19,946,137,116.94 = 7,987,167,305.42 : x
  2. Step 2: Convert to fraction form
    13,315,954,769.17/19,946,137,116.94 = 7,987,167,305.42/x
  3. Step 3: Cross multiply
    13,315,954,769.17x = 19,946,137,116.94 × 7,987,167,305.42
  4. Step 4: Simplify right side
    13,315,954,769.17x = 159,313,134,249,847,488,512
  5. Step 5: Solve for x
    x = 159,313,134,249,847,488,512/13,315,954,769.17
  6. Step 6: Final answer
    x = 11,964,078,957.27

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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.