Home / 13,790,435.43-20,678,471.58-5,147,429.20

Finding the Fourth Proportional to 13,790,435.43, 20,678,471.58 and 5,147,429.20

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Solution

The fourth proportional to 13,790,435.43, 20,678,471.58 and 5,147,429.20 is: 7,718,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,435.43 : 20,678,471.58 = 5,147,429.20 : x
  2. Step 2: Convert to fraction form
    13,790,435.43/20,678,471.58 = 5,147,429.20/x
  3. Step 3: Cross multiply
    13,790,435.43x = 20,678,471.58 × 5,147,429.20
  4. Step 4: Simplify right side
    13,790,435.43x = 106,440,968,467,413.08
  5. Step 5: Solve for x
    x = 106,440,968,467,413.08/13,790,435.43
  6. Step 6: Final answer
    x = 7,718,463.21

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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.