Home / 20,764,757.94-28,655,203.05-12,068,021.22

Finding the Fourth Proportional to 20,764,757.94, 28,655,203.05 and 12,068,021.22

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Solution

The fourth proportional to 20,764,757.94, 28,655,203.05 and 12,068,021.22 is: 16,653,774.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,757.94 : 28,655,203.05 = 12,068,021.22 : x
  2. Step 2: Convert to fraction form
    20,764,757.94/28,655,203.05 = 12,068,021.22/x
  3. Step 3: Cross multiply
    20,764,757.94x = 28,655,203.05 × 12,068,021.22
  4. Step 4: Simplify right side
    20,764,757.94x = 345,811,598,470,808.75
  5. Step 5: Solve for x
    x = 345,811,598,470,808.75/20,764,757.94
  6. Step 6: Final answer
    x = 16,653,774.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.