Home / 18,378,213.80-27,567,320.70-13,276,380.20

Finding the Fourth Proportional to 18,378,213.80, 27,567,320.70 and 13,276,380.20

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Solution

The fourth proportional to 18,378,213.80, 27,567,320.70 and 13,276,380.20 is: 19,914,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378,213.80 : 27,567,320.70 = 13,276,380.20 : x
  2. Step 2: Convert to fraction form
    18,378,213.80/27,567,320.70 = 13,276,380.20/x
  3. Step 3: Cross multiply
    18,378,213.80x = 27,567,320.70 × 13,276,380.20
  4. Step 4: Simplify right side
    18,378,213.80x = 365,994,230,708,530.12
  5. Step 5: Solve for x
    x = 365,994,230,708,530.12/18,378,213.80
  6. Step 6: Final answer
    x = 19,914,570.30

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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.