Home / 18,792,142.80-28,188,214.20-11,233,870.80

Finding the Fourth Proportional to 18,792,142.80, 28,188,214.20 and 11,233,870.80

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Solution

The fourth proportional to 18,792,142.80, 28,188,214.20 and 11,233,870.80 is: 16,850,806.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,142.80 : 28,188,214.20 = 11,233,870.80 : x
  2. Step 2: Convert to fraction form
    18,792,142.80/28,188,214.20 = 11,233,870.80/x
  3. Step 3: Cross multiply
    18,792,142.80x = 28,188,214.20 × 11,233,870.80
  4. Step 4: Simplify right side
    18,792,142.80x = 316,662,756,405,525.38
  5. Step 5: Solve for x
    x = 316,662,756,405,525.38/18,792,142.80
  6. Step 6: Final answer
    x = 16,850,806.20

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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.