Home / 20,684,372.58-30,950,975.31-12,168,719.46

Finding the Fourth Proportional to 20,684,372.58, 30,950,975.31 and 12,168,719.46

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Solution

The fourth proportional to 20,684,372.58, 30,950,975.31 and 12,168,719.46 is: 18,208,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,372.58 : 30,950,975.31 = 12,168,719.46 : x
  2. Step 2: Convert to fraction form
    20,684,372.58/30,950,975.31 = 12,168,719.46/x
  3. Step 3: Cross multiply
    20,684,372.58x = 30,950,975.31 × 12,168,719.46
  4. Step 4: Simplify right side
    20,684,372.58x = 376,633,735,560,776.56
  5. Step 5: Solve for x
    x = 376,633,735,560,776.56/20,684,372.58
  6. Step 6: Final answer
    x = 18,208,613.01

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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.