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Finding the Fourth Proportional to 18,194,438.40, 27,283,784.40 and 7,408,154.40

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Solution

The fourth proportional to 18,194,438.40, 27,283,784.40 and 7,408,154.40 is: 11,109,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,194,438.40 : 27,283,784.40 = 7,408,154.40 : x
  2. Step 2: Convert to fraction form
    18,194,438.40/27,283,784.40 = 7,408,154.40/x
  3. Step 3: Cross multiply
    18,194,438.40x = 27,283,784.40 × 7,408,154.40
  4. Step 4: Simplify right side
    18,194,438.40x = 202,122,487,451,511.34
  5. Step 5: Solve for x
    x = 202,122,487,451,511.34/18,194,438.40
  6. Step 6: Final answer
    x = 11,109,025.90

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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.