Home / 18,671,716.80-28,008,450.72-9,075,656.64

Finding the Fourth Proportional to 18,671,716.80, 28,008,450.72 and 9,075,656.64

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Solution

The fourth proportional to 18,671,716.80, 28,008,450.72 and 9,075,656.64 is: 13,613,910.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671,716.80 : 28,008,450.72 = 9,075,656.64 : x
  2. Step 2: Convert to fraction form
    18,671,716.80/28,008,450.72 = 9,075,656.64/x
  3. Step 3: Cross multiply
    18,671,716.80x = 28,008,450.72 × 9,075,656.64
  4. Step 4: Simplify right side
    18,671,716.80x = 254,195,081,753,080.78
  5. Step 5: Solve for x
    x = 254,195,081,753,080.78/18,671,716.80
  6. Step 6: Final answer
    x = 13,613,910.52

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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.