Home / 2,143,534.21-3,211,097.45-1,243,084.22

Finding the Fourth Proportional to 2,143,534.21, 3,211,097.45 and 1,243,084.22

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Solution

The fourth proportional to 2,143,534.21, 3,211,097.45 and 1,243,084.22 is: 1,862,188.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,534.21 : 3,211,097.45 = 1,243,084.22 : x
  2. Step 2: Convert to fraction form
    2,143,534.21/3,211,097.45 = 1,243,084.22/x
  3. Step 3: Cross multiply
    2,143,534.21x = 3,211,097.45 × 1,243,084.22
  4. Step 4: Simplify right side
    2,143,534.21x = 3,991,664,569,236.59
  5. Step 5: Solve for x
    x = 3,991,664,569,236.59/2,143,534.21
  6. Step 6: Final answer
    x = 1,862,188.41

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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.