Home / 20,105,836.43-30,144,986.43-10,238,800.05

Finding the Fourth Proportional to 20,105,836.43, 30,144,986.43 and 10,238,800.05

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Solution

The fourth proportional to 20,105,836.43, 30,144,986.43 and 10,238,800.05 is: 15,351,188.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105,836.43 : 30,144,986.43 = 10,238,800.05 : x
  2. Step 2: Convert to fraction form
    20,105,836.43/30,144,986.43 = 10,238,800.05/x
  3. Step 3: Cross multiply
    20,105,836.43x = 30,144,986.43 × 10,238,800.05
  4. Step 4: Simplify right side
    20,105,836.43x = 308,648,488,566,733.31
  5. Step 5: Solve for x
    x = 308,648,488,566,733.31/20,105,836.43
  6. Step 6: Final answer
    x = 15,351,188.68

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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.