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Finding the Fourth Proportional to 8,889,745.70, 13,334,618.55 and 8,541,380.90

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Solution

The fourth proportional to 8,889,745.70, 13,334,618.55 and 8,541,380.90 is: 12,812,071.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,745.70 : 13,334,618.55 = 8,541,380.90 : x
  2. Step 2: Convert to fraction form
    8,889,745.70/13,334,618.55 = 8,541,380.90/x
  3. Step 3: Cross multiply
    8,889,745.70x = 13,334,618.55 × 8,541,380.90
  4. Step 4: Simplify right side
    8,889,745.70x = 113,896,056,191,755.70
  5. Step 5: Solve for x
    x = 113,896,056,191,755.70/8,889,745.70
  6. Step 6: Final answer
    x = 12,812,071.35

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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.