Home / 2,666,999.20-3,996,999.60-1,068,253.60

Finding the Fourth Proportional to 2,666,999.20, 3,996,999.60 and 1,068,253.60

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Solution

The fourth proportional to 2,666,999.20, 3,996,999.60 and 1,068,253.60 is: 1,600,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,999.20 : 3,996,999.60 = 1,068,253.60 : x
  2. Step 2: Convert to fraction form
    2,666,999.20/3,996,999.60 = 1,068,253.60/x
  3. Step 3: Cross multiply
    2,666,999.20x = 3,996,999.60 × 1,068,253.60
  4. Step 4: Simplify right side
    2,666,999.20x = 4,269,809,211,898.56
  5. Step 5: Solve for x
    x = 4,269,809,211,898.56/2,666,999.20
  6. Step 6: Final answer
    x = 1,600,978.81

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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.