Home / 8,271,561.12-12,405,702.96-7,861,425.72

Finding the Fourth Proportional to 8,271,561.12, 12,405,702.96 and 7,861,425.72

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Solution

The fourth proportional to 8,271,561.12, 12,405,702.96 and 7,861,425.72 is: 11,790,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271,561.12 : 12,405,702.96 = 7,861,425.72 : x
  2. Step 2: Convert to fraction form
    8,271,561.12/12,405,702.96 = 7,861,425.72/x
  3. Step 3: Cross multiply
    8,271,561.12x = 12,405,702.96 × 7,861,425.72
  4. Step 4: Simplify right side
    8,271,561.12x = 97,526,512,324,424.14
  5. Step 5: Solve for x
    x = 97,526,512,324,424.14/8,271,561.12
  6. Step 6: Final answer
    x = 11,790,581.11

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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.