Home / 3,118,579.80-4,677,869.70-1,916,604.60

Finding the Fourth Proportional to 3,118,579.80, 4,677,869.70 and 1,916,604.60

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Solution

The fourth proportional to 3,118,579.80, 4,677,869.70 and 1,916,604.60 is: 2,874,906.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,579.80 : 4,677,869.70 = 1,916,604.60 : x
  2. Step 2: Convert to fraction form
    3,118,579.80/4,677,869.70 = 1,916,604.60/x
  3. Step 3: Cross multiply
    3,118,579.80x = 4,677,869.70 × 1,916,604.60
  4. Step 4: Simplify right side
    3,118,579.80x = 8,965,626,585,220.62
  5. Step 5: Solve for x
    x = 8,965,626,585,220.62/3,118,579.80
  6. Step 6: Final answer
    x = 2,874,906.90

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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.