Home / 18,792,143.80-28,188,215.70-9,815,529.40

Finding the Fourth Proportional to 18,792,143.80, 28,188,215.70 and 9,815,529.40

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Solution

The fourth proportional to 18,792,143.80, 28,188,215.70 and 9,815,529.40 is: 14,723,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,143.80 : 28,188,215.70 = 9,815,529.40 : x
  2. Step 2: Convert to fraction form
    18,792,143.80/28,188,215.70 = 9,815,529.40/x
  3. Step 3: Cross multiply
    18,792,143.80x = 28,188,215.70 × 9,815,529.40
  4. Step 4: Simplify right side
    18,792,143.80x = 276,682,259,936,891.59
  5. Step 5: Solve for x
    x = 276,682,259,936,891.59/18,792,143.80
  6. Step 6: Final answer
    x = 14,723,294.10

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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.