Home / 18,732,448,991.84-28,100,325,120.66-5,286,852,665.04

Finding the Fourth Proportional to 18,732,448,991.84, 28,100,325,120.66 and 5,286,852,665.04

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Solution

The fourth proportional to 18,732,448,991.84, 28,100,325,120.66 and 5,286,852,665.04 is: 7,930,745,137.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732,448,991.84 : 28,100,325,120.66 = 5,286,852,665.04 : x
  2. Step 2: Convert to fraction form
    18,732,448,991.84/28,100,325,120.66 = 5,286,852,665.04/x
  3. Step 3: Cross multiply
    18,732,448,991.84x = 28,100,325,120.66 × 5,286,852,665.04
  4. Step 4: Simplify right side
    18,732,448,991.84x = 148,562,278,752,651,771,904
  5. Step 5: Solve for x
    x = 148,562,278,752,651,771,904/18,732,448,991.84
  6. Step 6: Final answer
    x = 7,930,745,137.35

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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.