Home / 12,501,780.12-18,739,882.44-8,458,694.82

Finding the Fourth Proportional to 12,501,780.12, 18,739,882.44 and 8,458,694.82

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Solution

The fourth proportional to 12,501,780.12, 18,739,882.44 and 8,458,694.82 is: 12,679,390.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501,780.12 : 18,739,882.44 = 8,458,694.82 : x
  2. Step 2: Convert to fraction form
    12,501,780.12/18,739,882.44 = 8,458,694.82/x
  3. Step 3: Cross multiply
    12,501,780.12x = 18,739,882.44 × 8,458,694.82
  4. Step 4: Simplify right side
    12,501,780.12x = 158,514,946,522,636.97
  5. Step 5: Solve for x
    x = 158,514,946,522,636.97/12,501,780.12
  6. Step 6: Final answer
    x = 12,679,390.05

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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.