Home / 20,229,769.20-30,344,653.80-17,891,428.80

Finding the Fourth Proportional to 20,229,769.20, 30,344,653.80 and 17,891,428.80

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Solution

The fourth proportional to 20,229,769.20, 30,344,653.80 and 17,891,428.80 is: 26,837,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229,769.20 : 30,344,653.80 = 17,891,428.80 : x
  2. Step 2: Convert to fraction form
    20,229,769.20/30,344,653.80 = 17,891,428.80/x
  3. Step 3: Cross multiply
    20,229,769.20x = 30,344,653.80 × 17,891,428.80
  4. Step 4: Simplify right side
    20,229,769.20x = 542,909,212,923,349.50
  5. Step 5: Solve for x
    x = 542,909,212,923,349.50/20,229,769.20
  6. Step 6: Final answer
    x = 26,837,143.20

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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.