Home / 20,665,905.84-30,983,416.92-14,257,872.72

Finding the Fourth Proportional to 20,665,905.84, 30,983,416.92 and 14,257,872.72

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Solution

The fourth proportional to 20,665,905.84, 30,983,416.92 and 14,257,872.72 is: 21,376,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,665,905.84 : 30,983,416.92 = 14,257,872.72 : x
  2. Step 2: Convert to fraction form
    20,665,905.84/30,983,416.92 = 14,257,872.72/x
  3. Step 3: Cross multiply
    20,665,905.84x = 30,983,416.92 × 14,257,872.72
  4. Step 4: Simplify right side
    20,665,905.84x = 441,757,614,876,054.44
  5. Step 5: Solve for x
    x = 441,757,614,876,054.44/20,665,905.84
  6. Step 6: Final answer
    x = 21,376,155.41

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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.