Home / 28,083,670.80-42,129,442.80-11,040,379.80

Finding the Fourth Proportional to 28,083,670.80, 42,129,442.80 and 11,040,379.80

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Solution

The fourth proportional to 28,083,670.80, 42,129,442.80 and 11,040,379.80 is: 16,562,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,670.80 : 42,129,442.80 = 11,040,379.80 : x
  2. Step 2: Convert to fraction form
    28,083,670.80/42,129,442.80 = 11,040,379.80/x
  3. Step 3: Cross multiply
    28,083,670.80x = 42,129,442.80 × 11,040,379.80
  4. Step 4: Simplify right side
    28,083,670.80x = 465,125,049,274,375.44
  5. Step 5: Solve for x
    x = 465,125,049,274,375.44/28,083,670.80
  6. Step 6: Final answer
    x = 16,562,117.27

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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.