Home / 10,920,936.80-16,381,405.20-6,669,408.80

Finding the Fourth Proportional to 10,920,936.80, 16,381,405.20 and 6,669,408.80

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Solution

The fourth proportional to 10,920,936.80, 16,381,405.20 and 6,669,408.80 is: 10,004,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920,936.80 : 16,381,405.20 = 6,669,408.80 : x
  2. Step 2: Convert to fraction form
    10,920,936.80/16,381,405.20 = 6,669,408.80/x
  3. Step 3: Cross multiply
    10,920,936.80x = 16,381,405.20 × 6,669,408.80
  4. Step 4: Simplify right side
    10,920,936.80x = 109,254,287,997,245.75
  5. Step 5: Solve for x
    x = 109,254,287,997,245.75/10,920,936.80
  6. Step 6: Final answer
    x = 10,004,113.20

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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.