Home / 7,212,817.56-9,953,810.64-3,949,580.28

Finding the Fourth Proportional to 7,212,817.56, 9,953,810.64 and 3,949,580.28

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Solution

The fourth proportional to 7,212,817.56, 9,953,810.64 and 3,949,580.28 is: 5,450,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,817.56 : 9,953,810.64 = 3,949,580.28 : x
  2. Step 2: Convert to fraction form
    7,212,817.56/9,953,810.64 = 3,949,580.28/x
  3. Step 3: Cross multiply
    7,212,817.56x = 9,953,810.64 × 3,949,580.28
  4. Step 4: Simplify right side
    7,212,817.56x = 39,313,374,214,598.18
  5. Step 5: Solve for x
    x = 39,313,374,214,598.18/7,212,817.56
  6. Step 6: Final answer
    x = 5,450,487.81

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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.