Home / 18,728,334.90-28,101,833.55-10,647,515.70

Finding the Fourth Proportional to 18,728,334.90, 28,101,833.55 and 10,647,515.70

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Solution

The fourth proportional to 18,728,334.90, 28,101,833.55 and 10,647,515.70 is: 15,976,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,334.90 : 28,101,833.55 = 10,647,515.70 : x
  2. Step 2: Convert to fraction form
    18,728,334.90/28,101,833.55 = 10,647,515.70/x
  3. Step 3: Cross multiply
    18,728,334.90x = 28,101,833.55 × 10,647,515.70
  4. Step 4: Simplify right side
    18,728,334.90x = 299,214,713,922,411.75
  5. Step 5: Solve for x
    x = 299,214,713,922,411.75/18,728,334.90
  6. Step 6: Final answer
    x = 15,976,578.57

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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.