Home / 18,683,486.80-28,025,230.20-13,183,072.45

Finding the Fourth Proportional to 18,683,486.80, 28,025,230.20 and 13,183,072.45

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Solution

The fourth proportional to 18,683,486.80, 28,025,230.20 and 13,183,072.45 is: 19,774,608.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,486.80 : 28,025,230.20 = 13,183,072.45 : x
  2. Step 2: Convert to fraction form
    18,683,486.80/28,025,230.20 = 13,183,072.45/x
  3. Step 3: Cross multiply
    18,683,486.80x = 28,025,230.20 × 13,183,072.45
  4. Step 4: Simplify right side
    18,683,486.80x = 369,458,640,154,527.94
  5. Step 5: Solve for x
    x = 369,458,640,154,527.94/18,683,486.80
  6. Step 6: Final answer
    x = 19,774,608.68

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1.5x scale

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.