Home / 20,684,373.58-30,950,976.81-12,168,720.46

Finding the Fourth Proportional to 20,684,373.58, 30,950,976.81 and 12,168,720.46

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Solution

The fourth proportional to 20,684,373.58, 30,950,976.81 and 12,168,720.46 is: 18,208,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,373.58 : 30,950,976.81 = 12,168,720.46 : x
  2. Step 2: Convert to fraction form
    20,684,373.58/30,950,976.81 = 12,168,720.46/x
  3. Step 3: Cross multiply
    20,684,373.58x = 30,950,976.81 × 12,168,720.46
  4. Step 4: Simplify right side
    20,684,373.58x = 376,633,784,764,832.56
  5. Step 5: Solve for x
    x = 376,633,784,764,832.56/20,684,373.58
  6. Step 6: Final answer
    x = 18,208,614.50

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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.