Home / 18,940,869.12-28,418,457.60-11,373,093.12

Finding the Fourth Proportional to 18,940,869.12, 28,418,457.60 and 11,373,093.12

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Solution

The fourth proportional to 18,940,869.12, 28,418,457.60 and 11,373,093.12 is: 17,063,935.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940,869.12 : 28,418,457.60 = 11,373,093.12 : x
  2. Step 2: Convert to fraction form
    18,940,869.12/28,418,457.60 = 11,373,093.12/x
  3. Step 3: Cross multiply
    18,940,869.12x = 28,418,457.60 × 11,373,093.12
  4. Step 4: Simplify right side
    18,940,869.12x = 323,205,764,611,571.69
  5. Step 5: Solve for x
    x = 323,205,764,611,571.69/18,940,869.12
  6. Step 6: Final answer
    x = 17,063,935.27

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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.