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Finding the Fourth Proportional to 8,320,912.40, 11,665,006 and 8,320,912.40

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Solution

The fourth proportional to 8,320,912.40, 11,665,006 and 8,320,912.40 is: 11,665,006

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320,912.40 : 11,665,006 = 8,320,912.40 : x
  2. Step 2: Convert to fraction form
    8,320,912.40/11,665,006 = 8,320,912.40/x
  3. Step 3: Cross multiply
    8,320,912.40x = 11,665,006 × 8,320,912.40
  4. Step 4: Simplify right side
    8,320,912.40x = 97,063,493,071,474.41
  5. Step 5: Solve for x
    x = 97,063,493,071,474.41/8,320,912.40
  6. Step 6: Final answer
    x = 11,665,006

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.