Home / 18,653,787.34-27,985,872.08-8,138,380.72

Finding the Fourth Proportional to 18,653,787.34, 27,985,872.08 and 8,138,380.72

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Solution

The fourth proportional to 18,653,787.34, 27,985,872.08 and 8,138,380.72 is: 12,209,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653,787.34 : 27,985,872.08 = 8,138,380.72 : x
  2. Step 2: Convert to fraction form
    18,653,787.34/27,985,872.08 = 8,138,380.72/x
  3. Step 3: Cross multiply
    18,653,787.34x = 27,985,872.08 × 8,138,380.72
  4. Step 4: Simplify right side
    18,653,787.34x = 227,759,681,768,258.28
  5. Step 5: Solve for x
    x = 227,759,681,768,258.28/18,653,787.34
  6. Step 6: Final answer
    x = 12,209,835.87

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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.