Home / 12,108,310.80-18,172,959.90-6,355,108.32

Finding the Fourth Proportional to 12,108,310.80, 18,172,959.90 and 6,355,108.32

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Solution

The fourth proportional to 12,108,310.80, 18,172,959.90 and 6,355,108.32 is: 9,538,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108,310.80 : 18,172,959.90 = 6,355,108.32 : x
  2. Step 2: Convert to fraction form
    12,108,310.80/18,172,959.90 = 6,355,108.32/x
  3. Step 3: Cross multiply
    12,108,310.80x = 18,172,959.90 × 6,355,108.32
  4. Step 4: Simplify right side
    12,108,310.80x = 115,491,128,659,516.36
  5. Step 5: Solve for x
    x = 115,491,128,659,516.36/12,108,310.80
  6. Step 6: Final answer
    x = 9,538,170.15

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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.