Home / 11,988,438.28-17,978,193.22-4,309,987.90

Finding the Fourth Proportional to 11,988,438.28, 17,978,193.22 and 4,309,987.90

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Solution

The fourth proportional to 11,988,438.28, 17,978,193.22 and 4,309,987.90 is: 6,463,376.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988,438.28 : 17,978,193.22 = 4,309,987.90 : x
  2. Step 2: Convert to fraction form
    11,988,438.28/17,978,193.22 = 4,309,987.90/x
  3. Step 3: Cross multiply
    11,988,438.28x = 17,978,193.22 × 4,309,987.90
  4. Step 4: Simplify right side
    11,988,438.28x = 77,485,795,242,062.05
  5. Step 5: Solve for x
    x = 77,485,795,242,062.05/11,988,438.28
  6. Step 6: Final answer
    x = 6,463,376.92

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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.