Home / 13,906,858.80-20,860,288.20-9,117,328.80

Finding the Fourth Proportional to 13,906,858.80, 20,860,288.20 and 9,117,328.80

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Solution

The fourth proportional to 13,906,858.80, 20,860,288.20 and 9,117,328.80 is: 13,675,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906,858.80 : 20,860,288.20 = 9,117,328.80 : x
  2. Step 2: Convert to fraction form
    13,906,858.80/20,860,288.20 = 9,117,328.80/x
  3. Step 3: Cross multiply
    13,906,858.80x = 20,860,288.20 × 9,117,328.80
  4. Step 4: Simplify right side
    13,906,858.80x = 190,190,106,382,160.16
  5. Step 5: Solve for x
    x = 190,190,106,382,160.16/13,906,858.80
  6. Step 6: Final answer
    x = 13,675,993.20

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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.