Home / 2,105,999.80-3,158,999.70-1,861,930.60

Finding the Fourth Proportional to 2,105,999.80, 3,158,999.70 and 1,861,930.60

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Solution

The fourth proportional to 2,105,999.80, 3,158,999.70 and 1,861,930.60 is: 2,792,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,999.80 : 3,158,999.70 = 1,861,930.60 : x
  2. Step 2: Convert to fraction form
    2,105,999.80/3,158,999.70 = 1,861,930.60/x
  3. Step 3: Cross multiply
    2,105,999.80x = 3,158,999.70 × 1,861,930.60
  4. Step 4: Simplify right side
    2,105,999.80x = 5,881,838,206,820.82
  5. Step 5: Solve for x
    x = 5,881,838,206,820.82/2,105,999.80
  6. Step 6: Final answer
    x = 2,792,895.90

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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.