Home / 18,926,426.44-28,389,867.38-5,278,741.82

Finding the Fourth Proportional to 18,926,426.44, 28,389,867.38 and 5,278,741.82

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Solution

The fourth proportional to 18,926,426.44, 28,389,867.38 and 5,278,741.82 is: 7,918,176.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926,426.44 : 28,389,867.38 = 5,278,741.82 : x
  2. Step 2: Convert to fraction form
    18,926,426.44/28,389,867.38 = 5,278,741.82/x
  3. Step 3: Cross multiply
    18,926,426.44x = 28,389,867.38 × 5,278,741.82
  4. Step 4: Simplify right side
    18,926,426.44x = 149,862,780,203,059.84
  5. Step 5: Solve for x
    x = 149,862,780,203,059.84/18,926,426.44
  6. Step 6: Final answer
    x = 7,918,176.24

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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.