Home / 3,716,778.88-5,128,533.12-2,189,190.16

Finding the Fourth Proportional to 3,716,778.88, 5,128,533.12 and 2,189,190.16

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Solution

The fourth proportional to 3,716,778.88, 5,128,533.12 and 2,189,190.16 is: 3,020,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716,778.88 : 5,128,533.12 = 2,189,190.16 : x
  2. Step 2: Convert to fraction form
    3,716,778.88/5,128,533.12 = 2,189,190.16/x
  3. Step 3: Cross multiply
    3,716,778.88x = 5,128,533.12 × 2,189,190.16
  4. Step 4: Simplify right side
    3,716,778.88x = 11,227,334,241,538.10
  5. Step 5: Solve for x
    x = 11,227,334,241,538.10/3,716,778.88
  6. Step 6: Final answer
    x = 3,020,716.22

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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.