Home / 8,112,845.40-12,168,475.14-2,129,213.40

Finding the Fourth Proportional to 8,112,845.40, 12,168,475.14 and 2,129,213.40

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Solution

The fourth proportional to 8,112,845.40, 12,168,475.14 and 2,129,213.40 is: 3,193,611.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112,845.40 : 12,168,475.14 = 2,129,213.40 : x
  2. Step 2: Convert to fraction form
    8,112,845.40/12,168,475.14 = 2,129,213.40/x
  3. Step 3: Cross multiply
    8,112,845.40x = 12,168,475.14 × 2,129,213.40
  4. Step 4: Simplify right side
    8,112,845.40x = 25,909,280,325,654.88
  5. Step 5: Solve for x
    x = 25,909,280,325,654.88/8,112,845.40
  6. Step 6: Final answer
    x = 3,193,611.99

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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.