Home / 12,969,519.12-19,453,968.42-4,215,786.66

Finding the Fourth Proportional to 12,969,519.12, 19,453,968.42 and 4,215,786.66

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Solution

The fourth proportional to 12,969,519.12, 19,453,968.42 and 4,215,786.66 is: 6,323,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969,519.12 : 19,453,968.42 = 4,215,786.66 : x
  2. Step 2: Convert to fraction form
    12,969,519.12/19,453,968.42 = 4,215,786.66/x
  3. Step 3: Cross multiply
    12,969,519.12x = 19,453,968.42 × 4,215,786.66
  4. Step 4: Simplify right side
    12,969,519.12x = 82,013,780,549,097.28
  5. Step 5: Solve for x
    x = 82,013,780,549,097.28/12,969,519.12
  6. Step 6: Final answer
    x = 6,323,579.14

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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.