Home / 3,855,380.40-5,776,072.20-3,141,543.60

Finding the Fourth Proportional to 3,855,380.40, 5,776,072.20 and 3,141,543.60

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Solution

The fourth proportional to 3,855,380.40, 5,776,072.20 and 3,141,543.60 is: 4,706,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,380.40 : 5,776,072.20 = 3,141,543.60 : x
  2. Step 2: Convert to fraction form
    3,855,380.40/5,776,072.20 = 3,141,543.60/x
  3. Step 3: Cross multiply
    3,855,380.40x = 5,776,072.20 × 3,141,543.60
  4. Step 4: Simplify right side
    3,855,380.40x = 18,145,782,653,047.92
  5. Step 5: Solve for x
    x = 18,145,782,653,047.92/3,855,380.40
  6. Step 6: Final answer
    x = 4,706,612.78

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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.