Home / 13,419,145,387.20-18,518,476,568.58-7,397,518,504.98

Finding the Fourth Proportional to 13,419,145,387.20, 18,518,476,568.58 and 7,397,518,504.98

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Solution

The fourth proportional to 13,419,145,387.20, 18,518,476,568.58 and 7,397,518,504.98 is: 10,208,606,371.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,145,387.20 : 18,518,476,568.58 = 7,397,518,504.98 : x
  2. Step 2: Convert to fraction form
    13,419,145,387.20/18,518,476,568.58 = 7,397,518,504.98/x
  3. Step 3: Cross multiply
    13,419,145,387.20x = 18,518,476,568.58 × 7,397,518,504.98
  4. Step 4: Simplify right side
    13,419,145,387.20x = 136,990,773,100,109,086,720
  5. Step 5: Solve for x
    x = 136,990,773,100,109,086,720/13,419,145,387.20
  6. Step 6: Final answer
    x = 10,208,606,371.52

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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.