Home / 12,137,685.72-18,193,812.12-5,655,416.04

Finding the Fourth Proportional to 12,137,685.72, 18,193,812.12 and 5,655,416.04

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Solution

The fourth proportional to 12,137,685.72, 18,193,812.12 and 5,655,416.04 is: 8,477,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,685.72 : 18,193,812.12 = 5,655,416.04 : x
  2. Step 2: Convert to fraction form
    12,137,685.72/18,193,812.12 = 5,655,416.04/x
  3. Step 3: Cross multiply
    12,137,685.72x = 18,193,812.12 × 5,655,416.04
  4. Step 4: Simplify right side
    12,137,685.72x = 102,893,576,892,194.41
  5. Step 5: Solve for x
    x = 102,893,576,892,194.41/12,137,685.72
  6. Step 6: Final answer
    x = 8,477,198.97

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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.