Home / 2,156,762.60-2,976,311.78-1,189,900.68

Finding the Fourth Proportional to 2,156,762.60, 2,976,311.78 and 1,189,900.68

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Solution

The fourth proportional to 2,156,762.60, 2,976,311.78 and 1,189,900.68 is: 1,642,051.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,762.60 : 2,976,311.78 = 1,189,900.68 : x
  2. Step 2: Convert to fraction form
    2,156,762.60/2,976,311.78 = 1,189,900.68/x
  3. Step 3: Cross multiply
    2,156,762.60x = 2,976,311.78 × 1,189,900.68
  4. Step 4: Simplify right side
    2,156,762.60x = 3,541,515,410,914.01
  5. Step 5: Solve for x
    x = 3,541,515,410,914.01/2,156,762.60
  6. Step 6: Final answer
    x = 1,642,051.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.