Home / 18,915,873.03-28,270,166.91-13,809,056.72

Finding the Fourth Proportional to 18,915,873.03, 28,270,166.91 and 13,809,056.72

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Solution

The fourth proportional to 18,915,873.03, 28,270,166.91 and 13,809,056.72 is: 20,637,923.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915,873.03 : 28,270,166.91 = 13,809,056.72 : x
  2. Step 2: Convert to fraction form
    18,915,873.03/28,270,166.91 = 13,809,056.72/x
  3. Step 3: Cross multiply
    18,915,873.03x = 28,270,166.91 × 13,809,056.72
  4. Step 4: Simplify right side
    18,915,873.03x = 390,384,338,150,922.31
  5. Step 5: Solve for x
    x = 390,384,338,150,922.31/18,915,873.03
  6. Step 6: Final answer
    x = 20,637,923.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.