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Finding the Fourth Proportional to 8,286,266.40, 12,408,404.40 and 6,606,650.40

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Solution

The fourth proportional to 8,286,266.40, 12,408,404.40 and 6,606,650.40 is: 9,893,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286,266.40 : 12,408,404.40 = 6,606,650.40 : x
  2. Step 2: Convert to fraction form
    8,286,266.40/12,408,404.40 = 6,606,650.40/x
  3. Step 3: Cross multiply
    8,286,266.40x = 12,408,404.40 × 6,606,650.40
  4. Step 4: Simplify right side
    8,286,266.40x = 81,977,989,892,621.77
  5. Step 5: Solve for x
    x = 81,977,989,892,621.77/8,286,266.40
  6. Step 6: Final answer
    x = 9,893,236.10

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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.